How To Fix /CPD/PFP_MESSAGES391 - Plan item ID already exists; a new ID has been assigned

SAP Error Message - Details

• Message type: E = Error

• Message class: /CPD/PFP_MESSAGES -

• Message number: 391

• Message text: Plan item ID already exists; a new ID has been assigned

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 /CPD/PFP_MESSAGES391 - Plan item ID already exists; a new ID has been assigned ?

  The SAP error message /CPD/PFP_MESSAGES391 indicates that there is an attempt to create or modify a plan item in the system, but the specified Plan Item ID already exists. This typically occurs in the context of planning functions or processes where unique identifiers are required for each plan item.
  Cause:
  
  Duplicate Plan Item ID: The most common cause is that the Plan Item ID you are trying to create or modify is already in use within the system.
  Data Migration Issues: If data has been migrated from another system or if there have been bulk uploads, it’s possible that duplicate IDs were introduced.
  Concurrent Processing: If multiple users or processes are trying to create or modify plan items simultaneously, it may lead to conflicts and duplicate IDs.
  Configuration Issues: There may be issues with the configuration of the planning area or the settings that govern how Plan Item IDs are generated.
  
  Solution:
  
  Check Existing Plan Item IDs: Before creating a new Plan Item, check the existing IDs in the system to ensure that the ID you want to use is not already taken.
  Use a Unique ID: If the ID is already in use, you will need to generate or specify a new unique Plan Item ID.
  Review Data Migration: If this issue arose after a data migration, review the migration process to ensure that unique constraints were maintained.
  Locking Mechanism: Implement a locking mechanism or a check to prevent concurrent processes from trying to create the same Plan Item ID.
  Consult Documentation: Review SAP documentation or consult with your SAP Basis or functional team to understand the specific configuration settings related to Plan Item IDs.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on best practices for managing Plan Item IDs.
  Transaction Codes: Familiarize yourself with relevant transaction codes (like /CPD/PFP for planning functions) that can help you navigate the planning area and manage plan items.
  User Authorization: Ensure that you have the necessary authorizations to create or modify plan items in the system.
  System Logs: Review system logs for any additional error messages or warnings that might provide more context about the issue.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support or your internal SAP team for further assistance.