How To Fix CRM_NF_API021 - Invalid selection sign

SAP Error Message - Details

• Message type: E = Error

• Message class: CRM_NF_API - Messages for Notification Framework API Exceptions

• Message number: 021

• Message text: Invalid selection sign

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CRM_NF_API021 - Invalid selection sign ?

  The SAP error message CRM_NF_API021: Invalid selection sign typically occurs in the context of the SAP Customer Relationship Management (CRM) module when there is an issue with the selection criteria used in a report or transaction. This error indicates that the selection sign (e.g., '=', '<>', '<', '>', etc.) used in a selection condition is not valid or recognized by the system.
  Causes:
  
  Incorrect Selection Sign: The selection sign used in the query or selection criteria is not valid. For example, using a sign that is not supported by the field type.
  Field Type Mismatch: The selection sign may not be appropriate for the data type of the field being queried (e.g., using a numeric sign on a character field).
  Custom Development Issues: If there are custom reports or enhancements, there may be coding errors that lead to invalid selection signs being generated.
  Data Integrity Issues: There may be issues with the data in the database that lead to unexpected behavior when the selection is processed.
  
  Solutions:
  
  Check Selection Criteria: Review the selection criteria used in the report or transaction. Ensure that the selection signs are valid for the fields being queried.
  Field Type Verification: Verify the data types of the fields involved in the selection. Ensure that the selection signs used are appropriate for those data types.
  Review Custom Code: If the error occurs in a custom report or enhancement, review the ABAP code to ensure that the selection signs are being set correctly.
  Test with Standard Reports: If possible, test the same selection criteria with standard SAP reports to see if the issue persists. This can help determine if the problem is with the custom code or the selection criteria itself.
  Consult Documentation: Refer to SAP documentation or help resources for the specific transaction or report to understand the valid selection signs for the fields involved.
  Contact SAP Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on similar issues.
  Transaction Codes: Familiarize yourself with transaction codes related to CRM reporting and data selection, such as CRMD_ORDER, CRMD_ORDERADM_H, etc.
  Debugging: If you have access to debugging tools, you can analyze the program flow to identify where the invalid selection sign is being generated.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.