How To Fix APB_FPM_CORE790 - Reference Field "&1" is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: APB_FPM_CORE - FPM messages

• Message number: 790

• Message text: Reference Field "&1" is invalid

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message APB_FPM_CORE790 - Reference Field "&1" is invalid ?

  The SAP error message APB_FPM_CORE790, which states "Reference Field '&1' is invalid," typically occurs in the context of the Floorplan Manager (FPM) or when working with Web Dynpro applications. This error indicates that a reference field specified in the application is not recognized or is invalid, which can lead to issues in data processing or display.
  Causes:
  
  Incorrect Field Name: The field name specified in the configuration or code may be misspelled or does not exist in the underlying data model.
  Field Not Available in Context: The field may not be part of the context node that is being used in the application.
  Data Model Changes: If there have been changes to the underlying data model (e.g., changes in the database table or structure), the reference field may no longer be valid.
  Configuration Issues: There may be issues in the FPM configuration or Web Dynpro component configuration that lead to the field being incorrectly referenced.
  
  Solutions:
  
  Check Field Name: Verify that the field name specified in the error message is correct. Ensure there are no typos and that it matches the field names in the data model.
  Review Context Node: Check the context node in the FPM or Web Dynpro application to ensure that the field is included in the context. If it is missing, you may need to add it.
  Update Data Model: If the underlying data model has changed, update the application to reflect these changes. This may involve modifying the data source or adjusting the context mapping.
  Configuration Review: Review the FPM configuration or Web Dynpro component configuration to ensure that all references to fields are valid and correctly set up.
  Debugging: If the issue persists, consider debugging the application to trace where the invalid reference is being made. This can help identify the root cause of the problem.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Refer to the official SAP documentation for Floorplan Manager and Web Dynpro to understand the correct usage of reference fields and context nodes.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues. They may provide insights or solutions based on their experiences.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with an SAP expert or your organization's SAP support team for further assistance.