Wednesday, 11 March 2026

8 Common Errors in Dual-write

  • 502 Bad Gateway: when the target application is not ready to handle the incoming request 
  • 401 Unauthorized / 403 Forbidden: This error occurs when there is a permission issue
  • 503 Service Unavailable: This error occurs when the application is down 
  • 400 Bad Request: This error occurs when Dynamics 365 FO is restarting 
  • 429 Too Many Requests: This error occurs when there is throttling 
  • Application Error: when there is a Data validation error happening in the background 
  • Any other HTTP Error: Any other errors related to the HTTP tagged to this type of error category

8 Common Errors in Dual-write

502 Bad Gateway : when the target application is not ready to handle the incoming request  401 Unauthorized / 403 Forbidden: This error occ...