How To Fix ICLL_CUSTOMIZING020 - Regular expression is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: ICLL_CUSTOMIZING - Message Class for Customizing

• Message number: 020

• Message text: Regular expression 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 ICLL_CUSTOMIZING020 - Regular expression is invalid ?

  The SAP error message ICLL_CUSTOMIZING020 indicates that there is an issue with a regular expression used in the customizing settings of the SAP system. This error typically arises when the regular expression syntax is incorrect or not supported by the SAP system.
  Cause:
  
  Invalid Syntax: The regular expression may contain syntax errors or unsupported constructs.
  Unsupported Features: Some regular expression features may not be supported in the version of SAP you are using.
  Configuration Issues: The regular expression might be part of a configuration that is not set up correctly.
  
  Solution:
  
  Check the Regular Expression: Review the regular expression for any syntax errors. Ensure that it adheres to the syntax rules supported by SAP.
  Test the Regular Expression: Use a regular expression testing tool or an online regex tester to validate the expression outside of SAP.
  Consult Documentation: Refer to the SAP documentation for the specific version you are using to understand the supported syntax and features for regular expressions.
  Simplify the Expression: If the regular expression is complex, try simplifying it to see if a simpler version works.
  SAP Notes: Check for any relevant SAP Notes that might address this issue or provide guidance on using regular expressions in your specific context.
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  Regular Expressions in SAP: Regular expressions are often used in various SAP modules for validation, filtering, and pattern matching. Understanding how they work in the context of SAP can help in troubleshooting.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  Version-Specific Features: Be aware that different versions of SAP may have different capabilities and limitations regarding regular expressions.
  
  By following these steps, you should be able to identify and resolve the issue causing the ICLL_CUSTOMIZING020 error message.