A.24 Error Code 531
- Associated Error Category
 - 
                        
Command Code and App ID no match
 - Description
 - Command Code doesn't match the App ID or doesn't exist
 - Associated P-DRA Alarm/Event
 - Event 22700 - Protocol errors in Diameter Requests (refer to the DSR Alarms and KPIs Reference for details about this event)
 - Associated Measurement
 - RxPdraRequestProtocolErr
 - Associated Diameter Interface / Message Type
 - Diameter Requests
 - GUI Configurable
 - No (Result Code 5019)
 
Recovery
- Check Diameter Message Validation in the Error Resolution appendix of the Policy and Charging Application User Guide to investigate and understand the circumstances where the error occurs.
 - Go to the Policy DRA SOAM GUI at and set the Display Filter by Events (in particular, Event 22700 - Protocol errors in Diameter Requests.
 - Use the Origin-Host value of the received Request found in Event 22700 - Protocol errors in Diameter Requests to understand from where the Request was sent.
 - Get the measurement report from for, but not limited to, "Diameter Exception," "DSR Application Exception," and "Policy DRA Diameter Exception" Measurement Groups.