diff --git a/backend/apps/admin/src/problem/problem.resolver.ts b/backend/apps/admin/src/problem/problem.resolver.ts
index aa08f3abed..b2d9b6d666 100644
--- a/backend/apps/admin/src/problem/problem.resolver.ts
+++ b/backend/apps/admin/src/problem/problem.resolver.ts
@@ -14,7 +14,6 @@ import { AuthenticatedRequest } from '@libs/auth'
 import { OPEN_SPACE_ID } from '@libs/constants'
 import {
   ConflictFoundException,
-  EntityNotExistException,
   ForbiddenAccessException,
   UnprocessableDataException
 } from '@libs/exception'
@@ -196,7 +195,7 @@ export class ProblemResolver {
     @Args('workbookId', { type: () => Int }) workbookId: number
   ) {
     try {
-      return this.problemService.getWorkbookProblems(groupId, workbookId)
+      return await this.problemService.getWorkbookProblems(groupId, workbookId)
     } catch (error) {
       if (
         error instanceof UnprocessableDataException ||
@@ -204,7 +203,7 @@ export class ProblemResolver {
       ) {
         throw error.convert2HTTPException()
       } else if (error.code == 'P2025') {
-        throw new EntityNotExistException(error.message)
+        throw new NotFoundException(error.message)
       }
       this.logger.error(error)
       throw new InternalServerErrorException(error.message)
@@ -224,7 +223,7 @@ export class ProblemResolver {
     @Args('orders', { type: () => [Int] }, ParseArrayPipe) orders: number[]
   ) {
     try {
-      return this.problemService.updateWorkbookProblemsOrder(
+      return await this.problemService.updateWorkbookProblemsOrder(
         groupId,
         workbookId,
         orders
@@ -236,7 +235,7 @@ export class ProblemResolver {
       ) {
         throw error.convert2HTTPException()
       } else if (error.code == 'P2025') {
-        throw new EntityNotExistException(error.message)
+        throw new NotFoundException(error.message)
       }
       this.logger.error(error)
       throw new InternalServerErrorException(error.message)
@@ -254,7 +253,7 @@ export class ProblemResolver {
     @Args('contestId', { type: () => Int }) contestId: number
   ) {
     try {
-      return this.problemService.getContestProblems(groupId, contestId)
+      return await this.problemService.getContestProblems(groupId, contestId)
     } catch (error) {
       if (
         error instanceof UnprocessableDataException ||
@@ -262,7 +261,7 @@ export class ProblemResolver {
       ) {
         throw error.convert2HTTPException()
       } else if (error.code == 'P2025') {
-        throw new EntityNotExistException(error.message)
+        throw new NotFoundException(error.message)
       }
       this.logger.error(error)
       throw new InternalServerErrorException(error.message)
@@ -281,7 +280,7 @@ export class ProblemResolver {
     @Args('orders', { type: () => [Int] }, ParseArrayPipe) orders: number[]
   ) {
     try {
-      return this.problemService.updateContestProblemsOrder(
+      return await this.problemService.updateContestProblemsOrder(
         groupId,
         contestId,
         orders
@@ -293,7 +292,7 @@ export class ProblemResolver {
       ) {
         throw error.convert2HTTPException()
       } else if (error.code == 'P2025') {
-        throw new EntityNotExistException(error.message)
+        throw new NotFoundException(error.message)
       }
       this.logger.error(error)
       throw new InternalServerErrorException(error.message)
diff --git a/collection/admin/Problem/Create Problem/Succeed.bru b/collection/admin/Problem/Create Problem/Succeed.bru
new file mode 100644
index 0000000000..c5f37c0fa4
--- /dev/null
+++ b/collection/admin/Problem/Create Problem/Succeed.bru	
@@ -0,0 +1,78 @@
+meta {
+  name: Succeed
+  type: graphql
+  seq: 1
+}
+
+post {
+  url: {{gqlUrl}}
+  body: graphql
+  auth: none
+}
+
+body:graphql {
+  mutation CreateProblem($groupId: Int!, $input:  CreateProblemInput!) {
+    createProblem(groupId: $groupId, input: $input) {
+      id
+      createdById
+      groupId
+      title
+      description
+      inputDescription
+      outputDescription
+      hint
+    }
+  }
+}
+
+body:graphql:vars {
+  {
+    "groupId": 1,
+    "input": {
+      "title": "createdProblem",
+      "description": "description",
+      "inputDescription": "input description",
+      "outputDescription": "output description",
+      "hint": "hint",
+      "template": {
+        "language": "Cpp",
+        "code": [
+          {
+            "id": 1,
+            "text": "int main() {}",
+            "locked": false
+          }
+        ]
+      },
+      "languages": ["Cpp"],
+      "timeLimit": 0,
+      "memoryLimit": 0,
+      "difficulty": "Level2",
+      "source": "source",
+      "inputExamples": [],
+      "outputExamples": [],
+      "testcases": [
+        {
+          "input": "input",
+          "output": "output"
+        }
+      ],
+      "tagIds": [1]
+    }
+  }
+}
+
+assert {
+  res.body.data.createProblem: isDefined
+}
+
+docs {
+  ## Create Problem
+  Problem을 생성합니다.
+  
+  ### Error Cases
+  #### UNPROCESSABLE(1)
+  Problem은 최소 1개 이상의 프로그래밍 언어를 지원해야 합니다.
+  #### UNPROCESSABLE(2)
+  Problem은 Template에 존재하는 프로그래밍 언어를 지원해야 합니다.
+}
diff --git a/collection/admin/Problem/Create Problem/UNPROCESSABLE (1).bru b/collection/admin/Problem/Create Problem/UNPROCESSABLE (1).bru
new file mode 100644
index 0000000000..875fb7c5f8
--- /dev/null
+++ b/collection/admin/Problem/Create Problem/UNPROCESSABLE (1).bru	
@@ -0,0 +1,68 @@
+meta {
+  name: UNPROCESSABLE (1)
+  type: graphql
+  seq: 2
+}
+
+post {
+  url: {{gqlUrl}}
+  body: graphql
+  auth: none
+}
+
+body:graphql {
+  mutation CreateProblem($groupId: Int!, $input:  CreateProblemInput!) {
+    createProblem(groupId: $groupId, input: $input) {
+      id
+      createdById
+      groupId
+      title
+      description
+      inputDescription
+      outputDescription
+      hint
+    }
+  }
+}
+
+body:graphql:vars {
+  {
+    "groupId": 1,
+    "input": {
+      "title": "createdProblem",
+      "description": "description",
+      "inputDescription": "input description",
+      "outputDescription": "output description",
+      "hint": "hint",
+      "template": {
+        "language": "Cpp",
+        "code": [
+          {
+            "id": 1,
+            "text": "int main() {}",
+            "locked": false
+          }
+        ]
+      },
+      "languages": [],
+      "timeLimit": 0,
+      "memoryLimit": 0,
+      "difficulty": "Level2",
+      "source": "source",
+      "inputExamples": [],
+      "outputExamples": [],
+      "testcases": [
+        {
+          "input": "input",
+          "output": "output"
+        }
+      ],
+      "tagIds": [1]
+    }
+  }
+}
+
+assert {
+  res.body.errors[0].extensions.code: eq UNPROCESSABLE
+  res.body.errors[0].message: eq A problem should support at least one language
+}
diff --git a/collection/admin/Problem/Create Problem/UNPROCESSABLE (2).bru b/collection/admin/Problem/Create Problem/UNPROCESSABLE (2).bru
new file mode 100644
index 0000000000..e089b78765
--- /dev/null
+++ b/collection/admin/Problem/Create Problem/UNPROCESSABLE (2).bru	
@@ -0,0 +1,68 @@
+meta {
+  name: UNPROCESSABLE (2)
+  type: graphql
+  seq: 3
+}
+
+post {
+  url: {{gqlUrl}}
+  body: graphql
+  auth: none
+}
+
+body:graphql {
+  mutation CreateProblem($groupId: Int!, $input:  CreateProblemInput!) {
+    createProblem(groupId: $groupId, input: $input) {
+      id
+      createdById
+      groupId
+      title
+      description
+      inputDescription
+      outputDescription
+      hint
+    }
+  }
+}
+
+body:graphql:vars {
+  {
+    "groupId": 1,
+    "input": {
+      "title": "createdProblem",
+      "description": "description",
+      "inputDescription": "input description",
+      "outputDescription": "output description",
+      "hint": "hint",
+      "template": {
+        "language": "Cpp",
+        "code": [
+          {
+            "id": 1,
+            "text": "int main() {}",
+            "locked": false
+          }
+        ]
+      },
+      "languages": ["Python3"],
+      "timeLimit": 0,
+      "memoryLimit": 0,
+      "difficulty": "Level2",
+      "source": "source",
+      "inputExamples": [],
+      "outputExamples": [],
+      "testcases": [
+        {
+          "input": "input",
+          "output": "output"
+        }
+      ],
+      "tagIds": [1]
+    }
+  }
+}
+
+assert {
+  res.body.errors[0].extensions.code: eq UNPROCESSABLE
+  res.body.errors[0].message: eq This problem does not support Cpp
+}
diff --git a/collection/admin/Problem/Delete a Problem/NOT_FOUND.bru b/collection/admin/Problem/Delete a Problem/NOT_FOUND.bru
new file mode 100644
index 0000000000..ddba780171
--- /dev/null
+++ b/collection/admin/Problem/Delete a Problem/NOT_FOUND.bru	
@@ -0,0 +1,38 @@
+meta {
+  name: NOT_FOUND
+  type: graphql
+  seq: 2
+}
+
+post {
+  url: {{gqlUrl}}
+  body: graphql
+  auth: none
+}
+
+body:graphql {
+  mutation DeleteProblem($groupId: Int!, $id: Int!) {
+    deleteProblem(groupId: $groupId, id: $id) {
+      id
+      createdById
+      groupId
+      title
+      description
+      inputDescription
+      outputDescription
+      hint
+    }
+  }
+}
+
+body:graphql:vars {
+  {
+    "groupId": 99999,
+    "id": 5
+  }
+}
+
+assert {
+  res.body.errors[0].extensions.code: eq NOT_FOUND
+  res.body.errors[0].message: eq No Problem found
+}
diff --git a/collection/admin/Problem/Delete a Problem/Succeed.bru b/collection/admin/Problem/Delete a Problem/Succeed.bru
index 523228f76e..7c7d5e85dc 100644
--- a/collection/admin/Problem/Delete a Problem/Succeed.bru	
+++ b/collection/admin/Problem/Delete a Problem/Succeed.bru	
@@ -6,6 +6,41 @@ meta {
 
 post {
   url: {{gqlUrl}}
-  body: none
+  body: graphql
   auth: none
 }
+
+body:graphql {
+  mutation DeleteProblem($groupId: Int!, $id: Int!) {
+    deleteProblem(groupId: $groupId, id: $id) {
+      id
+      createdById
+      groupId
+      title
+      description
+      inputDescription
+      outputDescription
+      hint
+    }
+  }
+}
+
+body:graphql:vars {
+  {
+    "groupId": 1,
+    "id": 5
+  }
+}
+
+assert {
+  res.body.data.deleteProblem: isDefined
+}
+
+docs {
+  ## Delete Problem
+  Problem을 삭제합니다.
+  
+  ### Error Cases
+  #### NOT_FOUND
+  존재하는 id, groupId를 사용해야 합니다.
+}
diff --git a/collection/admin/Problem/Get ContestProblems by ID/Error: No Contest found.bru b/collection/admin/Problem/Get Contest Problems/NOT_FOUND.bru
similarity index 73%
rename from collection/admin/Problem/Get ContestProblems by ID/Error: No Contest found.bru
rename to collection/admin/Problem/Get Contest Problems/NOT_FOUND.bru
index a0e9888b25..8c7cedd9ba 100644
--- a/collection/admin/Problem/Get ContestProblems by ID/Error: No Contest found.bru	
+++ b/collection/admin/Problem/Get Contest Problems/NOT_FOUND.bru	
@@ -1,5 +1,5 @@
 meta {
-  name: Error: No Contest found
+  name: NOT_FOUND
   type: graphql
   seq: 2
 }
@@ -33,10 +33,5 @@ body:graphql:vars {
 
 assert {
   res.body.errors[0].message: eq No Contest found
-}
-
-docs {
-  # Error: No Contest found
-  
-  - `contestId`가 `groupId`에 속하지 않으면, `No Contest found` Error를 반환합니다.
+  res.body.errors[0].extensions.code: eq NOT_FOUND
 }
diff --git a/collection/admin/Problem/Get Contest Problems/Succeed.bru b/collection/admin/Problem/Get Contest Problems/Succeed.bru
new file mode 100644
index 0000000000..68fa5e1ee2
--- /dev/null
+++ b/collection/admin/Problem/Get Contest Problems/Succeed.bru	
@@ -0,0 +1,45 @@
+meta {
+  name: Succeed
+  type: graphql
+  seq: 1
+}
+
+post {
+  url: {{gqlUrl}}
+  body: graphql
+  auth: none
+}
+
+body:graphql {
+  query GetContestProblems($groupId: Int!, $contestId: Int!) {
+    getContestProblems(groupId: $groupId, contestId: $contestId) {
+      order
+      contestId
+      problemId
+      score
+      createTime
+      updateTime
+    }
+  }
+  
+}
+
+body:graphql:vars {
+  {
+    "groupId": 1,
+    "contestId":  1
+  }
+}
+
+assert {
+  res.body.data.getContestProblems: isDefined
+}
+
+docs {
+  ## Get Contest Problems
+  Contest Problem들을 가져옵니다.
+  
+  ### Error Cases
+  #### NOT_FOUND
+  존재하는 group id와 contest id가 필요합니다.
+}
diff --git a/collection/admin/Problem/Get ContestProblems by ID/Succeed.bru b/collection/admin/Problem/Get ContestProblems by ID/Succeed.bru
deleted file mode 100644
index 5008a6bbb8..0000000000
--- a/collection/admin/Problem/Get ContestProblems by ID/Succeed.bru	
+++ /dev/null
@@ -1,48 +0,0 @@
-meta {
-  name: Succeed
-  type: graphql
-  seq: 1
-}
-
-post {
-  url: {{gqlUrl}}
-  body: graphql
-  auth: none
-}
-
-body:graphql {
-  query GetContestProblems($groupId: Int!, $contestId: Int!) {
-    getContestProblems(groupId: $groupId, contestId: $contestId) {
-      order
-      contestId
-      problemId
-      score
-      createTime
-      updateTime
-    }
-  }
-  
-}
-
-body:graphql:vars {
-  {
-    "groupId": 1,
-    "contestId":  1
-  }
-}
-
-assert {
-  res.body.data.getContestProblems[0].order: isNumber
-  res.body.data.getContestProblems[0].contestId: isNumber
-  res.body.data.getContestProblems[0].problemId: isNumber
-  res.body.data.getContestProblems[0].score: isNumber
-  res.body.data.getContestProblems[0].createTime: isString
-  res.body.data.getContestProblems[0].createTime: isString
-}
-
-docs {
-  # Get ContestProblems by ID
-  
-  - `contestId`와 `workbookId`를 이용하여, `WorkbookProblem`들을 모두 가져 옵니다.  
-  - `contestId`가 `groupId`에 속하지 않으면, 에러를 반환합니다.  
-}
diff --git a/collection/admin/Problem/Get Problems/Succeed.bru b/collection/admin/Problem/Get Problems/Succeed.bru
new file mode 100644
index 0000000000..13d74aa306
--- /dev/null
+++ b/collection/admin/Problem/Get Problems/Succeed.bru	
@@ -0,0 +1,48 @@
+meta {
+  name: Succeed
+  type: graphql
+  seq: 1
+}
+
+post {
+  url: {{gqlUrl}}
+  body: graphql
+  auth: none
+}
+
+body:graphql {
+  query GetProblems($groupId: Int!, $cursor: Int, $take: Int!, $input: FilterProblemsInput!) {
+    getProblems(groupId: $groupId, cursor: $cursor, take: $take, input: $input) {
+      id
+      createdById
+      groupId
+      title
+      description
+      inputDescription
+      outputDescription
+      hint
+    }
+  }
+}
+
+body:graphql:vars {
+  {
+    "groupId": 1,
+    "cursor": 1,
+    "take": 10,
+    "input": {
+      "difficulty": ["Level1", "Level2", "Level3", "Level4", "Level5"],
+      "languages": ["C", "Cpp", "Java", "Python3"]
+    }
+  }
+}
+
+assert {
+  res.body.data.getProblems: isDefined
+}
+
+docs {
+  ## Get Problems
+  조건에 맞는 Problem들을 가져옵니다.
+  조건에 맞는 Problem이 없다면, 빈 배열을 반환합니다.
+}
diff --git a/collection/admin/Problem/Get WorkbookProblems by ID/Succeed.bru b/collection/admin/Problem/Get WorkbookProblems by ID/Succeed.bru
deleted file mode 100644
index 525aabcd08..0000000000
--- a/collection/admin/Problem/Get WorkbookProblems by ID/Succeed.bru	
+++ /dev/null
@@ -1,46 +0,0 @@
-meta {
-  name: Succeed
-  type: graphql
-  seq: 1
-}
-
-post {
-  url: {{gqlUrl}}
-  body: graphql
-  auth: none
-}
-
-body:graphql {
-  query GetWorkbookProblems($groupId: Int!, $workbookId: Int!) {
-    getWorkbookProblems(groupId: $groupId, workbookId: $workbookId) {
-      order
-      workbookId
-      problemId
-      createTime
-      updateTime
-    }
-  }
-  
-}
-
-body:graphql:vars {
-  {
-    "groupId": 1,
-    "workbookId":  1
-  }
-}
-
-assert {
-  res.body.data.getWorkbookProblems[0].order: isNumber
-  res.body.data.getWorkbookProblems[0].workbookId: isNumber
-  res.body.data.getWorkbookProblems[0].problemId: isNumber
-  res.body.data.getWorkbookProblems[0].createTime: isString
-  res.body.data.getWorkbookProblems[0].updateTime: isString
-}
-
-docs {
-  # Get WorkbookProblems by ID
-  
-  - `groupId`와 `workbookId`를 이용하여, `WorkbookProblem`들을 모두 가져 옵니다.  
-  - `workbookId`가 `groupId`에 속하지 않으면, 에러를 반환합니다.  
-}
diff --git a/collection/admin/Problem/Get WorkbookProblems by ID/Error: No Workbook found.bru b/collection/admin/Problem/Get WorkbookProblems/NOT_FOUND.bru
similarity index 66%
rename from collection/admin/Problem/Get WorkbookProblems by ID/Error: No Workbook found.bru
rename to collection/admin/Problem/Get WorkbookProblems/NOT_FOUND.bru
index 1c12907334..d1994bd90c 100644
--- a/collection/admin/Problem/Get WorkbookProblems by ID/Error: No Workbook found.bru	
+++ b/collection/admin/Problem/Get WorkbookProblems/NOT_FOUND.bru	
@@ -1,5 +1,5 @@
 meta {
-  name: Error: No Workbook found
+  name: NOT_FOUND
   type: graphql
   seq: 2
 }
@@ -25,17 +25,12 @@ body:graphql {
 
 body:graphql:vars {
   {
-    "groupId": 1,
-    "workbookId":  99
+    "groupId": 99999,
+    "workbookId":  1
   }
 }
 
 assert {
+  res.body.errors[0].extensions.code: eq NOT_FOUND
   res.body.errors[0].message: eq No Workbook found
 }
-
-docs {
-  # Error: No Workbook found
-  
-  - `workbookId`가 `groupId`에 속하지 않으면, `No Workbook found` Error를 반환합니다.
-}
diff --git a/collection/admin/Problem/Get WorkbookProblems/Succeed.bru b/collection/admin/Problem/Get WorkbookProblems/Succeed.bru
new file mode 100644
index 0000000000..8f58fe9df8
--- /dev/null
+++ b/collection/admin/Problem/Get WorkbookProblems/Succeed.bru	
@@ -0,0 +1,44 @@
+meta {
+  name: Succeed
+  type: graphql
+  seq: 1
+}
+
+post {
+  url: {{gqlUrl}}
+  body: graphql
+  auth: none
+}
+
+body:graphql {
+  query GetWorkbookProblems($groupId: Int!, $workbookId: Int!) {
+    getWorkbookProblems(groupId: $groupId, workbookId: $workbookId) {
+      order
+      workbookId
+      problemId
+      createTime
+      updateTime
+    }
+  }
+  
+}
+
+body:graphql:vars {
+  {
+    "groupId": 1,
+    "workbookId":  1
+  }
+}
+
+assert {
+  res.body.data.getWorkbookProblems: isDefined NOT_FOUND
+}
+
+docs {
+  ## Get WorkbookProblems
+  workbook problem들을 가져옵니다.
+  
+  ### Error Cases
+  #### NOT_FOUND
+  존재하는 groupId 또는 workbookId를 전달해야 합니다.
+}
diff --git a/collection/admin/Problem/Get a Problem/NOT_FOUND.bru b/collection/admin/Problem/Get a Problem/NOT_FOUND.bru
new file mode 100644
index 0000000000..d4271dce52
--- /dev/null
+++ b/collection/admin/Problem/Get a Problem/NOT_FOUND.bru	
@@ -0,0 +1,38 @@
+meta {
+  name: NOT_FOUND
+  type: graphql
+  seq: 2
+}
+
+post {
+  url: {{gqlUrl}}
+  body: graphql
+  auth: none
+}
+
+body:graphql {
+  query GetProblem($groupId: Int!, $id: Int!) {
+    getProblem(groupId: $groupId, id: $id) {
+      id
+      groupId
+      inputDescription
+      outputDescription
+      languages
+      submissionCount
+      difficulty
+      exposeTime
+    }
+  }
+}
+
+body:graphql:vars {
+  {
+    "groupId": 99999,
+    "id": 1
+  }
+}
+
+assert {
+  res.body.errors[0].extensions.code: eq NOT_FOUND
+  res.body.errors[0].message: eq No Problem found
+}
diff --git a/collection/admin/Problem/Get a Problem/Succeed.bru b/collection/admin/Problem/Get a Problem/Succeed.bru
new file mode 100644
index 0000000000..147d6fd720
--- /dev/null
+++ b/collection/admin/Problem/Get a Problem/Succeed.bru	
@@ -0,0 +1,46 @@
+meta {
+  name: Succeed
+  type: graphql
+  seq: 1
+}
+
+post {
+  url: {{gqlUrl}}
+  body: graphql
+  auth: none
+}
+
+body:graphql {
+  query GetProblem($groupId: Int!, $id: Int!) {
+    getProblem(groupId: $groupId, id: $id) {
+      id
+      createdById
+      groupId
+      title
+      description
+      inputDescription
+      outputDescription
+      hint
+    }
+  }
+}
+
+body:graphql:vars {
+  {
+    "groupId": 1,
+    "id": 1
+  }
+}
+
+assert {
+  res.body.data.getProblem: isDefined
+}
+
+docs {
+  ## Get a Problem
+  Problem을 가져옵니다.
+  
+  ### Error Cases
+  #### NOT_FOUND
+  존재하지 않는 groupId 또는 id를 전달하는 경우 발생합니다.
+}
diff --git a/collection/admin/Problem/Update ContestProblems Order/Error: No Contest found.bru b/collection/admin/Problem/Update ContestProblems Order/NOT_FOUND.bru
similarity index 76%
rename from collection/admin/Problem/Update ContestProblems Order/Error: No Contest found.bru
rename to collection/admin/Problem/Update ContestProblems Order/NOT_FOUND.bru
index 43f62d6947..2a56432f22 100644
--- a/collection/admin/Problem/Update ContestProblems Order/Error: No Contest found.bru	
+++ b/collection/admin/Problem/Update ContestProblems Order/NOT_FOUND.bru	
@@ -1,5 +1,5 @@
 meta {
-  name: Erro: No Contest found
+  name: NOT_FOUND
   type: graphql
   seq: 1
 }
@@ -21,7 +21,7 @@ body:graphql {
       updateTime
     }
   }
-
+  
 }
 
 body:graphql:vars {
@@ -34,10 +34,5 @@ body:graphql:vars {
 
 assert {
   res.body.errors[0].message: eq No Contest found
-}
-
-docs {
-  # Error: No Contest found
-
-  - `contestId`가 `groupId`에 속하지 않으면, `No Contest found` Error를 반환합니다.
+  res.body.errors[0].extensions.code: eq NOT_FOUND
 }
diff --git a/collection/admin/Problem/Update ContestProblems Order/Succeed.bru b/collection/admin/Problem/Update ContestProblems Order/Succeed.bru
index 49c806347d..6424a35b55 100644
--- a/collection/admin/Problem/Update ContestProblems Order/Succeed.bru	
+++ b/collection/admin/Problem/Update ContestProblems Order/Succeed.bru	
@@ -21,7 +21,7 @@ body:graphql {
       updateTime
     }
   }
-
+  
 }
 
 body:graphql:vars {
@@ -33,21 +33,19 @@ body:graphql:vars {
 }
 
 assert {
-  res.body.data.getContestProblems[0].order: isNumber
-  res.body.data.getContestProblems[0].contestId: isNumber
-  res.body.data.getContestProblems[0].problemId: isNumber
-  res.body.data.getContestProblems[0].score: isNumber
-  res.body.data.getContestProblems[0].createTime: isString
-  res.body.data.getContestProblems[0].createTime: isString
+  res.body.data.updateContestProblemsOrder: isDefined
 }
 
 docs {
-  # Update ContestProblems Order
-
-  - `groupId`, `contestId` and `orders`가 필요합니다.
-  - `contestId`가 `groupId`에 속해있지 않으면 실패합니다.
-  - `orders`의 길이가 `contestId`에 속한 `problem`의 개수와 다르면 실패합니다.
-  - `orders`의 원소값은 `contestId`에 속한 `problemId`를 의미합니다.
-  - `orders`: [3, 4, 5, 6, 7, 8, 1, 2]와 같이 `problemId`의 순서를 변경할 수 있습니다.
-  - 위의 예시는 3번, 4번, 5번, 6번, 7번, 8번, 1번, 2번 `problemId` 순으로 (3번 problem이 1번 `order`, 2번 problem이 10번 `order`) `problemId`의 순서를 변경합니다.
+  ## Update ContestProblems order
+  contest problems의 정렬 순서를 변경합니다.
+  
+  order: [3, 4, 5, 6, 7, 8, 1, 2]와 같이 `problemId`의 순서를 변경할 수 있습니다.
+  위의 예시는 3번, 4번, 5번, 6번, 7번, 8번, 1번, 2번 `problemId` 순으로 (3번 problem이 1번 `order`, 2번 problem이 10번 `order`) `problemId`의 순서를 변경합니다.
+  
+  ### Error Cases
+  #### UNPROCESSABLE
+  `orders`의 길이는 contest에 속한 문제들의 개수와 같아야 합니다.
+  #### NOT_FOUND
+  존재하는 group id와 contest id가 필요합니다.
 }
diff --git a/collection/admin/Problem/Update ContestProblems Order/Error: Length not equal.bru b/collection/admin/Problem/Update ContestProblems Order/UNPROCESSABLE.bru
similarity index 72%
rename from collection/admin/Problem/Update ContestProblems Order/Error: Length not equal.bru
rename to collection/admin/Problem/Update ContestProblems Order/UNPROCESSABLE.bru
index a0c6d21d18..ac070f4db8 100644
--- a/collection/admin/Problem/Update ContestProblems Order/Error: Length not equal.bru	
+++ b/collection/admin/Problem/Update ContestProblems Order/UNPROCESSABLE.bru	
@@ -1,5 +1,5 @@
 meta {
-  name: Error: Length not equal
+  name: UNPROCESSABLE
   type: graphql
   seq: 1
 }
@@ -21,7 +21,7 @@ body:graphql {
       updateTime
     }
   }
-
+  
 }
 
 body:graphql:vars {
@@ -34,10 +34,5 @@ body:graphql:vars {
 
 assert {
   res.body.errors[0].message: eq the len of orders and the len of contestProblem are not equal.
-}
-
-docs {
-  # Error: the len of orders and the len of contestProblem are not equal
-
-  - `orders`와 `contestId`에서 긁어온 `contestProblem`의 길이가 다를 때 발생하는 에러입니다.
+  res.body.errors[0].extensions.code: eq UNPROCESSABLE
 }
diff --git a/collection/admin/Problem/Update WorkbookProblems Order/Error: No Workbook found.bru b/collection/admin/Problem/Update WorkbookProblems Order/NOT_FOUND.bru
similarity index 76%
rename from collection/admin/Problem/Update WorkbookProblems Order/Error: No Workbook found.bru
rename to collection/admin/Problem/Update WorkbookProblems Order/NOT_FOUND.bru
index c99518bbf2..2be3c19001 100644
--- a/collection/admin/Problem/Update WorkbookProblems Order/Error: No Workbook found.bru	
+++ b/collection/admin/Problem/Update WorkbookProblems Order/NOT_FOUND.bru	
@@ -1,5 +1,5 @@
 meta {
-  name: Error: No Workbook found
+  name: NOT_FOUND
   type: graphql
   seq: 1
 }
@@ -20,7 +20,7 @@ body:graphql {
       updateTime
     }
   }
-
+  
 }
 
 body:graphql:vars {
@@ -33,10 +33,5 @@ body:graphql:vars {
 
 assert {
   res.body.errors[0].message: eq No Workbook found
-}
-
-docs {
-  # Error: No Workbook found
-
-  - `workbookId`가 `groupId`에 속하지 않으면, `No Workbook found` Error를 반환합니다.
+  res.body.errors[0].extensions.code: eq NOT_FOUND
 }
diff --git a/collection/admin/Problem/Update WorkbookProblems Order/Succeed.bru b/collection/admin/Problem/Update WorkbookProblems Order/Succeed.bru
index 4ed0bd085e..a6a0e481da 100644
--- a/collection/admin/Problem/Update WorkbookProblems Order/Succeed.bru	
+++ b/collection/admin/Problem/Update WorkbookProblems Order/Succeed.bru	
@@ -20,7 +20,7 @@ body:graphql {
       updateTime
     }
   }
-
+  
 }
 
 body:graphql:vars {
@@ -32,21 +32,19 @@ body:graphql:vars {
 }
 
 assert {
-  res.body.data.getWorkbookProblems[0].order: isNumber
-  res.body.data.getWorkbookProblems[0].workbookId: isNumber
-  res.body.data.getWorkbookProblems[0].problemId: isNumber
-  res.body.data.getWorkbookProblems[0].createTime: isString
-  res.body.data.getWorkbookProblems[0].updateTime: isString
+  res.body.data.updateWorkbookProblemsOrder: isDefined 
 }
 
 docs {
-  # Update WorkbookProblems Order
-
-  - `groupId`, `workbookId` and `orders`가 필요합니다.
-  - `workbookId`가 `groupId`에 속해있지 않으면 실패합니다.
-  - `orders`의 길이가 `workbookId`에 속한 `problem`의 개수와 다르면 실패합니다.
-  - `orders`의 원소값은 `workbookId`에 속한 `problemId`를 의미합니다.
-  - `orders`: [3, 4, 5, 6, 7, 8, 1, 2]와 같이 `problemId`의 순서를 변경할 수 있습니다.
-  - 위의 예시는 3번, 4번, 5번, 6번, 7번, 8번, 1번, 2번 `problemId` 순으로 (3번 problem이 1번 `order`, 2번 problem이 10번 `order`) `problemId`의 순서를 변경합니다.
-
+  ## Update WorkbookProblems order
+  workbook problems의 정렬 순서를 변경합니다.
+  
+  order: [3, 4, 5, 6, 7, 8, 1, 2]와 같이 `problemId`의 순서를 변경할 수 있습니다.
+  위의 예시는 3번, 4번, 5번, 6번, 7번, 8번, 1번, 2번 `problemId` 순으로 (3번 problem이 1번 `order`, 2번 problem이 10번 `order`) `problemId`의 순서를 변경합니다.
+  
+  ### Error Cases
+  #### UNPROCESSABLE
+  `orders`의 길이는 workbook에 속한 문제들의 개수와 같아야 합니다.
+  #### NOT_FOUND
+  존재하는 group id와 workbook id가 필요합니다.
 }
diff --git a/collection/admin/Problem/Update WorkbookProblems Order/Error: Length not equal.bru b/collection/admin/Problem/Update WorkbookProblems Order/UNPROCESSABLE.bru
similarity index 71%
rename from collection/admin/Problem/Update WorkbookProblems Order/Error: Length not equal.bru
rename to collection/admin/Problem/Update WorkbookProblems Order/UNPROCESSABLE.bru
index faa1abc27a..ee3aa9257c 100644
--- a/collection/admin/Problem/Update WorkbookProblems Order/Error: Length not equal.bru	
+++ b/collection/admin/Problem/Update WorkbookProblems Order/UNPROCESSABLE.bru	
@@ -1,5 +1,5 @@
 meta {
-  name: Error: Length not equal
+  name: UNPROCESSABLE
   type: graphql
   seq: 1
 }
@@ -20,7 +20,7 @@ body:graphql {
       updateTime
     }
   }
-
+  
 }
 
 body:graphql:vars {
@@ -33,10 +33,5 @@ body:graphql:vars {
 
 assert {
   res.body.errors[0].message: eq the len of orders and the len of workbookProblem are not equal.
-}
-
-docs {
-  # Error: the len of orders and the len of workbookProblem are not equal
-
-  - `orders`와 `workbookId`에서 긁어온 `workbookProblem`의 길이가 다를 때 발생하는 에러입니다.
+  res.body.errors[0].extensions.code: eq UNPROCESSABLE
 }
diff --git a/collection/admin/Problem/Update a Problem/Succeed.bru b/collection/admin/Problem/Update a Problem/Succeed.bru
new file mode 100644
index 0000000000..7e6657ad9d
--- /dev/null
+++ b/collection/admin/Problem/Update a Problem/Succeed.bru	
@@ -0,0 +1,55 @@
+meta {
+  name: Succeed
+  type: graphql
+  seq: 1
+}
+
+post {
+  url: {{gqlUrl}}
+  body: graphql
+  auth: none
+}
+
+body:graphql {
+  mutation UpdateProblem($groupId: Int!, $input: UpdateProblemInput!) {
+    updateProblem(groupId: $groupId, input: $input) {
+      id
+      createdById
+      groupId
+      title
+      description
+      inputDescription
+      outputDescription
+      hint
+    }
+  }
+}
+
+body:graphql:vars {
+  {
+    "groupId": 1,
+    "input": {
+      "id": 4,
+      "title": "updatedProblem",
+      "description": "updated description",
+      "inputDescription": "updated input description",
+      "outputDescription": "updated output description",
+      "hint": "updated hint"
+    }
+  }
+}
+
+assert {
+  res.body.data.updateProblem: isDefined
+}
+
+docs {
+  ## Update Problem
+  Problem 정보를 수정합니다.
+  
+  ### Error Cases
+  #### UNPROCESSABLE(1)
+  수정된 Problem은 최소 1개 이상의 프로그래밍 언어를 지원해야 합니다.
+  #### UNPROCESSABLE(2)
+  수정된 Problem은 Template에 존재하는 프로그래밍 언어를 지원해야 합니다.
+}
diff --git a/collection/admin/Problem/Update a Problem/UNPROCESSABLE (1).bru b/collection/admin/Problem/Update a Problem/UNPROCESSABLE (1).bru
new file mode 100644
index 0000000000..d1f645289a
--- /dev/null
+++ b/collection/admin/Problem/Update a Problem/UNPROCESSABLE (1).bru	
@@ -0,0 +1,56 @@
+meta {
+  name: UNPROCESSABLE (1)
+  type: graphql
+  seq: 2
+}
+
+post {
+  url: {{gqlUrl}}
+  body: graphql
+  auth: none
+}
+
+body:graphql {
+  mutation UpdateProblem($groupId: Int!, $input: UpdateProblemInput!) {
+    updateProblem(groupId: $groupId, input: $input) {
+      id
+      createdById
+      groupId
+      title
+      description
+      inputDescription
+      outputDescription
+      hint
+    }
+  }
+}
+
+body:graphql:vars {
+  {
+    "groupId": 1,
+    "input": {
+      "id": 4,
+      "title": "updatedProblem",
+      "description": "updated description",
+      "inputDescription": "updated input description",
+      "outputDescription": "updated output description",
+      "hint": "updated hint",
+      "template": {
+        "language": "Cpp",
+        "code": [
+          {
+            "id": 1,
+            "text": "int main() {}",
+            "locked": false
+          }
+        ]
+      },
+      "languages": []
+    }
+  }
+}
+
+assert {
+  res.body.errors[0].extensions.code: eq UNPROCESSABLE
+  res.body.errors[0].message: eq A problem should support at least one language
+}
diff --git a/collection/admin/Problem/Update a Problem/UNPROCESSABLE (2).bru b/collection/admin/Problem/Update a Problem/UNPROCESSABLE (2).bru
new file mode 100644
index 0000000000..975c4e62ee
--- /dev/null
+++ b/collection/admin/Problem/Update a Problem/UNPROCESSABLE (2).bru	
@@ -0,0 +1,56 @@
+meta {
+  name: UNPROCESSABLE (2)
+  type: graphql
+  seq: 3
+}
+
+post {
+  url: {{gqlUrl}}
+  body: graphql
+  auth: none
+}
+
+body:graphql {
+  mutation UpdateProblem($groupId: Int!, $input: UpdateProblemInput!) {
+    updateProblem(groupId: $groupId, input: $input) {
+      id
+      createdById
+      groupId
+      title
+      description
+      inputDescription
+      outputDescription
+      hint
+    }
+  }
+}
+
+body:graphql:vars {
+  {
+    "groupId": 1,
+    "input": {
+      "id": 4,
+      "title": "updatedProblem",
+      "description": "updated description",
+      "inputDescription": "updated input description",
+      "outputDescription": "updated output description",
+      "hint": "updated hint",
+      "template": {
+        "language": "Cpp",
+        "code": [
+          {
+            "id": 1,
+            "text": "int main() {}",
+            "locked": false
+          }
+        ]
+      },
+      "languages": ["Python3"]
+    }
+  }
+}
+
+assert {
+  res.body.errors[0].extensions.code: eq UNPROCESSABLE
+  res.body.errors[0].message: eq This problem does not support Cpp
+}