How To Fix P2635 - Duplicate numbers assigned to PDC messages

SAP Error Message - Details

• Message type: E = Error

• Message class: P2 - Messages for HR Time Management

• Message number: 635

• Message text: Duplicate numbers assigned to PDC messages

What causes this issue?

The number &V3& has been assigned internally to a time event. There is
already an object with this number, however.

System Response

The update is cancelled.

How to fix this error?

Check the status of interval &V2& using transaction <LS>PA06</> for
number range object &V1& and compare it to the numbers which are
displayed in view PDSNR using transaction SE16.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message P2635 - Duplicate numbers assigned to PDC messages ?

  The SAP error message P2635, which indicates "Duplicate numbers assigned to PDC messages," typically arises in the context of the Production Data Collection (PDC) module. This error occurs when the system detects that two or more PDC messages are being assigned the same number, which violates the uniqueness requirement for message identifiers.
  Causes:
  
  Duplicate Message Numbers: The most common cause is that the system is trying to process multiple PDC messages that have been assigned the same number, which can happen due to configuration issues or data entry errors.
  Concurrency Issues: If multiple processes or users are trying to create PDC messages simultaneously, it may lead to race conditions where the same number is assigned to different messages.
  Incorrect Configuration: The configuration settings for message number assignment may not be set up correctly, leading to overlaps in message numbers.
  Data Migration Issues: If data has been migrated from another system or if there have been recent changes in the database, it may result in duplicate entries.
  
  Solutions:
  
  Check for Duplicates: Review the PDC messages in the system to identify any duplicates. You can use transaction codes like PDC1 or PDC2 to view and manage PDC messages.
  Adjust Number Ranges: Ensure that the number range settings for PDC messages are correctly configured. You can check and adjust these settings in the customizing settings under SPRO -> Production -> Production Data Collection -> Number Ranges.
  Clear Inconsistent Data: If duplicates are found, you may need to delete or correct the inconsistent PDC messages. Ensure that you have backups before making any deletions.
  Review Custom Code: If there are any custom developments or enhancements related to PDC message creation, review the code to ensure that it correctly handles number assignments.
  System Locking: Implement proper locking mechanisms to prevent concurrent processes from creating PDC messages with the same number.
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that address this specific error message.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as PDC1, PDC2, and PDC3 for managing PDC messages.
  SAP Documentation: Refer to the official SAP documentation for Production Data Collection for detailed information on configuration and troubleshooting.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.