How To Fix AR166 - POR check digit contains characters not permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: AR - SSRV function module messages

• Message number: 166

• Message text: POR check digit contains characters not permitted

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message AR166 - POR check digit contains characters not permitted ?

  The SAP error message AR166, which states "POR check digit contains characters not permitted," typically occurs in the context of processing Purchase Order Requisitions (POR) or similar documents where a check digit is used for validation purposes. This error indicates that the check digit of a document contains invalid characters, which can prevent the document from being processed correctly.
  Cause:
  
  Invalid Characters: The check digit may contain characters that are not allowed, such as letters or special symbols, instead of just numeric digits.
  Data Entry Errors: Manual entry of the check digit may have introduced invalid characters.
  System Configuration: The system may be configured to expect a specific format for the check digit, and the current input does not meet that format.
  Data Migration Issues: If data was migrated from another system, the check digit may not have been formatted correctly.
  
  Solution:
  
  Verify Input: Check the input for the check digit and ensure that it only contains valid numeric characters. Remove any invalid characters.
  Correct Data Entry: If the check digit was entered manually, re-enter it ensuring that only valid characters are used.
  Review Configuration: Check the configuration settings in SAP related to the check digit validation. Ensure that the expected format is correctly defined.
  Data Cleansing: If the error is due to data migration, perform data cleansing to correct the check digits in the affected records.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on the expected format of check digits in your version of SAP.
  Contact Support: If the issue persists, consider reaching out to SAP support or your internal IT team for further assistance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide updates/patches that could resolve the issue.
  Transaction Codes: Familiarize yourself with transaction codes related to Purchase Order Requisitions (e.g., ME51N for creating requisitions) to better understand where the error may be occurring.
  User Training: Ensure that users involved in data entry are trained on the correct formats and validation rules for check digits to prevent future occurrences of this error.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.