Azure Documentation

Troubleshooting Errors

Error Code Message Cause Resolution
18456 Login failed for user '%.*ls'. Invalid credentials or disabled login. Verify username/password, enable login, check firewall rules.
4060 Cannot open database "%.*ls" requested by the login. Database does not exist or user lacks access. Confirm database name, ensure user has CONNECT permission.
40501 The service is currently busy. Retry the request after 30 seconds. Transient load on the logical server. Implement exponential backoff and retry logic.
10928 Resource ID: %ls. The request limit for this resource has been reached. Exceeded DTU/VCores or storage quota. Scale up/down or request a quota increase.
10929 Resource ID: %ls. The request limit for this resource has been reached. Too many concurrent requests. Implement throttling, consider connection pooling.
2812 Could not find stored procedure '%.*ls'. Object not found or permission denied. Verify schema, existence, and permissions.
823 Database page corrupted. Hardware failure or storage issue. Run DBCC CHECKDB, contact Azure support for recovery.
1205 Deadlock victim: transaction (Process ID %d) was chosen as the deadlock victim. Concurrent transactions with lock conflicts. Review queries, add appropriate indexes, use retry logic.
40197 The service has encountered an error processing your request. Please try again. Transient service error. Retry with exponential backoff.