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

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 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