How To Fix /SAPAPO/SNP555 - Sequence numbering incorrect

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/SNP -

• Message number: 555

• Message text: Sequence numbering incorrect

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 /SAPAPO/SNP555 - Sequence numbering incorrect ?

  The SAP error message /SAPAPO/SNP555 Sequence numbering incorrect typically occurs in the context of SAP Advanced Planning and Optimization (APO), particularly within the Supply Network Planning (SNP) module. This error indicates that there is an issue with the sequence numbers assigned to the planned orders or production orders in the planning run.
  Cause:
  
  
  Incorrect Sequence Numbering: The sequence numbers for planned orders may not be in the expected order, which can happen due to various reasons such as:
  
  Manual changes to planned orders.
  Deletion or modification of orders that disrupts the sequence.
  Issues during the planning run that lead to inconsistencies.
  
  
  
  Data Integrity Issues: There may be inconsistencies in the master data or transaction data that affect the sequence numbering.
  
  
  Configuration Issues: Incorrect settings in the SNP configuration can lead to problems with how sequence numbers are generated or maintained.
  
  
  Solution:
  
  
  Check and Correct Sequence Numbers:
  
  Review the planned orders and their sequence numbers in the system.
  If you identify any discrepancies, you may need to manually adjust the sequence numbers or delete and recreate the affected orders.
  
  
  
  Re-run the Planning Run:
  
  Sometimes, simply re-running the planning run can resolve the issue, as it may regenerate the sequence numbers correctly.
  
  
  
  Data Consistency Check:
  
  Perform a consistency check on the master data and transaction data to ensure there are no underlying issues causing the error.
  
  
  
  Review Configuration Settings:
  
  Check the SNP configuration settings to ensure they are set up correctly. This includes reviewing the settings for order types, planning strategies, and sequence number generation.
  
  
  
  SAP Notes and Support:
  
  Check for any relevant SAP Notes that may address this specific error. SAP frequently releases updates and patches that can resolve known issues.
  If the problem persists, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like /SAPAPO/SDP94 (for planning book) or /SAPAPO/MC90 (for planning run) to analyze and manage planned orders.
  Documentation: Refer to the SAP Help Portal for detailed documentation on SNP and error handling.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the /SAPAPO/SNP555 Sequence numbering incorrect error and implement a suitable solution.