How To Fix FPAPICHK021 - &, row &: Relational operator is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: FPAPICHK - SAFPAPI Message Class (Check)

• Message number: 021

• Message text: &, row &: Relational operator is invalid

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FPAPICHK021 - &, row &: Relational operator is invalid ?

  The SAP error message FPAPICHK021 indicates that there is an issue with a relational operator in a specific context, typically within a program or a configuration where a comparison is being made. This error often arises in the context of financial applications, particularly when dealing with payment processing or account postings.
  Cause:
  The error message "Relational operator is invalid" suggests that there is an invalid or unsupported relational operator being used in a condition or expression. This could be due to:
  
  Syntax Error: A typo or incorrect syntax in the code or configuration.
  Unsupported Operator: Using a relational operator that is not supported in the context where it is being applied.
  Data Type Mismatch: Comparing incompatible data types (e.g., trying to compare a string with a number).
  Logical Errors: Incorrect logic in the conditions that leads to the use of an invalid operator.
  
  Solution:
  To resolve the FPAPICHK021 error, you can take the following steps:
  
  
  Review the Code/Configuration: Check the specific line of code or configuration where the error is occurring. Look for any relational operators (like =, <>, <, >, <=, >=) and ensure they are used correctly.
  
  
  Check Data Types: Ensure that the data types being compared are compatible. If necessary, convert data types to ensure they match.
  
  
  Correct Syntax: If there is a syntax error, correct it according to the SAP ABAP syntax rules.
  
  
  Debugging: Use debugging tools in SAP to step through the code and identify the exact point of failure. This can help you understand the context in which the error occurs.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for the specific function or module you are working with to ensure you are using the correct operators and syntax.
  
  
  Testing: After making changes, test the program or configuration to ensure that the error is resolved and that the functionality works as expected.
  
  
  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.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  Documentation: Review the relevant SAP documentation for the module you are working with, as it may provide additional context or examples of valid relational operators.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or a consultant with expertise in the specific area of the application you are working with.