How To Fix B1116 - An IDoc without a message type was passed to the ALE layer

SAP Error Message - Details

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 116

• Message text: An IDoc without a message type was passed to the ALE layer

What causes this issue?

The IDoc passed to the ALE layer could not be processed. The settings
in the control record were not correct.
The logical message type (field MESTYP) was not passed.
The attempt to copy the value of the EDI message type (STDMES field)
also failed, because this field was also empty.

How to fix this error?

The fields mentioned above did not contain the values which they should
have done in the calling program.
Make a note of the transaction in which the error occurred and inform
your ALE administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B1116 - An IDoc without a message type was passed to the ALE layer ?

  The SAP error message B1116 indicates that an IDoc (Intermediate Document) was passed to the Application Link Enabling (ALE) layer without a specified message type. This can occur in various scenarios when working with IDocs in SAP, particularly during the process of data exchange between different systems.
  Cause:
  
  Missing Message Type: The IDoc being processed does not have a message type defined. The message type is crucial as it determines the structure and processing logic for the IDoc.
  Incorrect IDoc Configuration: The IDoc type or the associated message type may not be correctly configured in the system.
  Data Transfer Issues: There may be issues in the data transfer process that lead to the IDoc being generated without the necessary metadata.
  Custom Development: If there are custom programs or enhancements that generate IDocs, they may not be correctly populating the message type field.
  
  Solution:
  
  
  Check IDoc Configuration:
  
  Verify that the IDoc type being used has a corresponding message type defined in the system. You can check this in transaction WE30 (IDoc Types) and WE81 (Message Types).
  
  
  
  Review IDoc Generation Logic:
  
  If the IDoc is generated by a custom program, review the code to ensure that the message type is being set correctly before the IDoc is sent to the ALE layer.
  
  
  
  Use Transaction WE02:
  
  Use transaction WE02 to analyze the IDoc that triggered the error. Check the segments and ensure that the message type is populated.
  
  
  
  Check Partner Profiles:
  
  Ensure that the partner profiles (transaction WE20) are correctly configured for the sender and receiver systems. The message type should be correctly mapped in the partner profile.
  
  
  
  Reprocess IDocs:
  
  If the IDoc was generated incorrectly, you may need to correct the issue and reprocess the IDoc. You can use transaction BD87 to reprocess IDocs.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  
  Related Information:
  
  IDoc Structure: Understanding the structure of IDocs, including segments and fields, is essential for troubleshooting.
  ALE Configuration: Familiarity with ALE configuration, including message types, IDoc types, and partner profiles, is crucial for resolving issues related to IDocs.
  SAP Documentation: Refer to SAP Help documentation for detailed information on IDocs and ALE processing.
  
  By following these steps, you should be able to identify the root cause of the B1116 error and implement the necessary corrections to resolve it.