diff --git a/dictation_server/src/gateways/adb2c/adb2c.service.ts b/dictation_server/src/gateways/adb2c/adb2c.service.ts
index 7d8c17b..144813e 100644
--- a/dictation_server/src/gateways/adb2c/adb2c.service.ts
+++ b/dictation_server/src/gateways/adb2c/adb2c.service.ts
@@ -246,6 +246,7 @@ export class AdB2cService {
     try {
       // https://learn.microsoft.com/en-us/graph/api/user-delete?view=graph-rest-1.0&tabs=javascript#example
       await this.graphClient.api(`users/${externalId}`).delete();
+      throw new Error('ADB2C Error');
     } catch (e) {
       this.logger.error(`error=${e}`);
       throw e;
diff --git a/dictation_server/src/gateways/blobstorage/blobstorage.service.ts b/dictation_server/src/gateways/blobstorage/blobstorage.service.ts
index 0c5d6af..a806f48 100644
--- a/dictation_server/src/gateways/blobstorage/blobstorage.service.ts
+++ b/dictation_server/src/gateways/blobstorage/blobstorage.service.ts
@@ -116,6 +116,7 @@ export class BlobstorageService {
           `delete blob container failed. succeeded: ${succeeded}, errorCode: ${errorCode}, date: ${date}`,
         );
       }
+      throw new Error('Blob container Error');
     } catch (e) {
       this.logger.error(`error=${e}`);
       throw e;
diff --git a/dictation_server/src/repositories/accounts/accounts.repository.service.ts b/dictation_server/src/repositories/accounts/accounts.repository.service.ts
index e58669a..bc9d8d3 100644
--- a/dictation_server/src/repositories/accounts/accounts.repository.service.ts
+++ b/dictation_server/src/repositories/accounts/accounts.repository.service.ts
@@ -169,6 +169,7 @@ export class AccountsRepositoryService {
       // アカウントを削除
       await accountsRepo.delete({ id: accountId });
     });
+    throw new Error('DB Error');
   }
 
   /**