How To Fix FM_EXPLAIN023 - Invalid character &1 in search term &2

SAP Error Message - Details

• Message type: E = Error

• Message class: FM_EXPLAIN - Explain Dunning Decision

• Message number: 023

• Message text: Invalid character &1 in search term &2

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FM_EXPLAIN023 - Invalid character &1 in search term &2 ?

  The SAP error message FM_EXPLAIN023 indicates that there is an invalid character in a search term used in a function module or a related process. This error typically arises when the input provided for a search term contains characters that are not allowed or recognized by the system.
  Cause:
  
  Invalid Characters: The search term may contain special characters, spaces, or symbols that are not permitted in the context of the operation being performed.
  Data Format Issues: The input data may not conform to the expected format, leading to the system rejecting it.
  Encoding Problems: If the data is being transferred from another system or application, encoding issues may introduce invalid characters.
  
  Solution:
  
  Check Input Data: Review the search term for any invalid characters. Ensure that it only contains valid alphanumeric characters and any other characters that are explicitly allowed.
  Sanitize Input: If the input is coming from user input or external sources, implement validation and sanitization to remove or replace invalid characters before processing.
  Use Correct Encoding: Ensure that the data is encoded correctly, especially if it is being transferred between different systems. Use UTF-8 or the appropriate encoding as required by your SAP system.
  Refer to Documentation: Check the SAP documentation for the specific function module or transaction you are using to understand the valid character set for search terms.
  Debugging: If you have access to debugging tools, you can trace the execution to see where the invalid character is being introduced.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Function Module Documentation: Review the documentation for the specific function module you are using to understand its requirements and constraints.
  Community Forums: Look for discussions in SAP community forums or support channels where similar issues may have been addressed.
  
  By following these steps, you should be able to identify and resolve the issue causing the FM_EXPLAIN023 error in your SAP system.