How To Fix B1003 - Could not determine recipients for message type &

SAP Error Message - Details

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 003

• Message text: Could not determine recipients for message type &

What causes this issue?

An IDoc of message type &v1& was passed to the ALE layer, but the three
receiver fields in the header record were not filled. In this case the
ALE layer tries to determine the receivers from the entries in the
distribution model. There are no entries available in the distribution
model for the above message type.

How to fix this error?

Define the receivers in your distribution model for this message type
or deactivate distribution for these message types.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B1003 - Could not determine recipients for message type & ?

  The SAP error message B1003, which states "Could not determine recipients for message type &," typically occurs in the context of SAP's Business Workflow or when sending messages through the SAP system. This error indicates that the system was unable to identify the recipients for a specific message type, which can hinder communication processes within the system.
  Causes:
  
  Missing Configuration: The message type may not be properly configured in the system. This includes missing entries in the relevant customizing tables.
  Recipient Determination Issues: The system may not have the necessary information to determine the recipients, such as missing user assignments or incorrect organizational data.
  Message Type Not Defined: The message type being referenced may not be defined in the system or may not be active.
  Authorization Issues: The user or role attempting to send the message may not have the necessary authorizations to access the recipient data.
  Technical Issues: There could be underlying technical issues, such as problems with the workflow or communication settings.
  
  Solutions:
  
  
  Check Configuration:
  
  Go to transaction code SWU3 to check the workflow settings and ensure that the message type is correctly configured.
  Verify the settings in transaction SPRO under the relevant application area to ensure that the message type is defined and active.
  
  
  
  Recipient Determination:
  
  Review the recipient determination logic for the specific message type. This can often be found in the workflow definition or in the customizing settings for the message type.
  Ensure that the necessary user assignments are in place, and that the organizational data is correctly maintained.
  
  
  
  Message Type Verification:
  
  Use transaction SOST to check if the message type is defined and if there are any issues with it.
  Ensure that the message type is active and correctly set up in the system.
  
  
  
  Authorization Check:
  
  Verify that the user or role has the necessary authorizations to send messages and access recipient data. This can be checked in transaction SU53 or by reviewing the user roles in transaction PFCG.
  
  
  
  Technical Troubleshooting:
  
  If the issue persists, check the system logs (transaction SLG1) for any related error messages that could provide more context.
  Consult with your SAP Basis team to ensure that there are no underlying technical issues affecting the messaging system.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to message types and recipient determination.
  Documentation: Review the SAP Help Portal for documentation on workflows and message handling to understand the configuration and setup better.
  Community Forums: Engage with SAP community forums or user groups to see if others have encountered similar issues and what solutions they found effective.
  
  By following these steps, you should be able to identify the cause of the B1003 error and implement a solution to resolve it.