How To Fix R3125 - No name could be determined for the ALE message type

SAP Error Message - Details

• Message type: E = Error

• Message class: R3 - Service API messages

• Message number: 125

• Message text: No name could be determined for the ALE message type

What causes this issue?

The system attempted to activate the transfer rules for a DataSource
that displayed the Delta using an ALE change pointer. The system could
not determine the name of the message type required to record the
change pointer.

System Response

The transfer rules could not be activated.

How to fix this error?

Check that the number range object has been set up correctly BI_MSYTPE
(Note 141436).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message R3125 - No name could be determined for the ALE message type ?

  The SAP error message R3125, "No name could be determined for the ALE message type," typically occurs in the context of Application Link Enabling (ALE) when the system is unable to find a corresponding message type for the specified IDoc (Intermediate Document) type. This can happen for various reasons, including configuration issues or missing definitions.
  Causes:
  
  Missing Message Type Definition: The message type for the IDoc is not defined in the system.
  Incorrect Configuration: The configuration for the ALE distribution model may not be set up correctly.
  Transport Issues: If the IDoc type or message type was recently transported from another system, it may not have been properly activated or may be missing.
  Namespace Issues: If the IDoc type is in a custom namespace, the system may not be able to resolve it correctly.
  Authorization Issues: The user may not have the necessary authorizations to access the message type.
  
  Solutions:
  
  
  Check Message Type Definition:
  
  Go to transaction WE81 to check if the message type is defined.
  If it is missing, you may need to create it using transaction WE82.
  
  
  
  Verify ALE Configuration:
  
  Use transaction BD64 to check the distribution model and ensure that the message type is correctly assigned to the relevant logical systems.
  Ensure that the message type is included in the relevant outbound and inbound parameters.
  
  
  
  Transport Check:
  
  If the IDoc type or message type was recently transported, ensure that all necessary objects were included in the transport request.
  Check for any transport errors and re-import if necessary.
  
  
  
  Namespace Verification:
  
  If you are using custom namespaces, ensure that the namespace is correctly defined and that the system can access it.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access the message type and related configurations.
  
  
  
  Debugging:
  
  If the issue persists, you may need to debug the ALE processing to identify where the resolution fails. Use transaction SE37 to analyze the function modules involved in the ALE processing.
  
  
  
  Related Information:
  
  IDoc Types: IDocs are used for data exchange between SAP systems and external systems. Each IDoc type is associated with a specific message type.
  ALE Configuration: ALE allows for the distribution of data across different systems. Proper configuration is crucial for successful data exchange.
  Transaction Codes:
  
  WE81: Message Type Maintenance
  WE82: Message Type to IDoc Type Assignment
  BD64: Distribution Model
  SE37: Function Module
  
  
  
  By following these steps, you should be able to identify and resolve the issue related to the R3125 error message in SAP.