How To Fix /BOFU/FDT_EXP_BO_RET139 - No input binding for field &3 in association between &1 and &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /BOFU/FDT_EXP_BO_RET -

• Message number: 139

• Message text: No input binding for field &3 in association between &1 and &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /BOFU/FDT_EXP_BO_RET139 - No input binding for field &3 in association between &1 and &2 ?

  The SAP error message /BOFU/FDT_EXP_BO_RET139 indicates that there is an issue with the data binding in a Business Object (BO) association. Specifically, it states that there is "No input binding for field &3 in association between &1 and &2." This typically occurs in the context of SAP's Business Object Processing Framework (BOPF) or when working with the Fiori Elements and OData services.
  Cause:
  
  Missing Input Binding: The error suggests that a required input binding for a specific field is missing in the association between two business objects. This can happen if the field is not properly defined in the data model or if the association is not correctly set up.
  Incorrect Configuration: There may be a misconfiguration in the data model or the OData service that prevents the system from recognizing the necessary bindings.
  Field Not Mapped: The field in question may not be mapped correctly in the underlying data structure or may not exist in the expected context.
  
  Solution:
  
  Check Data Model: Review the data model to ensure that the field mentioned in the error message is correctly defined and that it exists in the associated business objects.
  Verify Associations: Ensure that the associations between the business objects are correctly configured. Check the cardinality and the fields involved in the association.
  Input Binding Configuration: If you are using a custom OData service, check the service definition to ensure that the input binding for the field is correctly set up.
  Rebuild the OData Service: If changes were made to the data model or associations, you may need to regenerate or rebuild the OData service to reflect those changes.
  Debugging: Use debugging tools to trace the execution and identify where the binding is failing. This can provide insights into what might be missing or misconfigured.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for BOPF and OData services for detailed guidelines on setting up associations and input bindings.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and to find potential solutions or workarounds.
  Transaction Codes: Use transaction codes like SE80 (Object Navigator) or SE11 (Data Dictionary) to inspect the data model and associations.
  
  By following these steps, you should be able to identify and resolve the issue causing the error message /BOFU/FDT_EXP_BO_RET139.