How To Fix /SAPPO/ACR124 - &1: Messages regarding POSNR do not ascend by 1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPPO/ACR -

• Message number: 124

• Message text: &1: Messages regarding POSNR do not ascend by 1

Self-Explanatory Message

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• What is the cause and solution for SAP error message /SAPPO/ACR124 - &1: Messages regarding POSNR do not ascend by 1 ?

  The SAP error message /SAPPO/ACR124 &1: Messages regarding POSNR do not ascend by 1 typically occurs in the context of Purchase Order (PO) processing, particularly when dealing with item numbers (POSNR) in a purchase order. This error indicates that the item numbers in the purchase order do not follow a sequential order, which is a requirement for certain processes in SAP.
  Cause:
  
  Non-sequential POSNR: The primary cause of this error is that the item numbers (POSNR) in the purchase order are not in ascending order. For example, if you have items numbered 10, 20, and 30, the system expects them to be 10, 11, 12, etc.
  Manual Entry Errors: If items are added manually, there may be a mistake in the numbering.
  Data Migration Issues: If data was migrated from another system, the item numbers may not have been set up correctly.
  Custom Logic: Custom enhancements or user exits may inadvertently cause item numbers to be assigned incorrectly.
  
  Solution:
  
  Check Item Numbers: Review the purchase order and ensure that the item numbers are in ascending order without any gaps. Adjust the item numbers as necessary.
  Recreate the PO: If the purchase order is not too complex, consider recreating it to ensure that the item numbers are assigned correctly.
  Data Validation: Implement validation checks in your processes to ensure that item numbers are assigned correctly in the future.
  Review Custom Code: If there are any custom enhancements or user exits that affect the creation of purchase orders, review them to ensure they are not causing the issue.
  Consult Documentation: Check SAP documentation or notes related to this error for any specific recommendations or patches that may address the issue.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like ME21N (Create Purchase Order) or ME22N (Change Purchase Order) to review and modify the purchase order.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may provide additional insights or fixes related to this error.
  Debugging: If you have access to debugging tools, you can trace the logic that assigns POSNR to identify where the issue arises.
  User Training: Ensure that users involved in creating purchase orders are trained on the importance of maintaining sequential item numbers.
  
  By addressing the root cause of the non-sequential item numbers, you should be able to resolve the error and prevent it from occurring in the future.