How To Fix APPLG016 - DC: Only one GP is allowed to change data per distribution cycle

SAP Error Message - Details

• Message type: E = Error

• Message class: APPLG - Application Graphics Messages (Graphic Proxy Framework)

• Message number: 016

• Message text: DC: Only one GP is allowed to change data per distribution cycle

What causes this issue?

A graphics proxy has tried to change data in the data container. The
changes were rejected because another graphics proxy has already made
changes.

How to fix this error?

This probably involves a programming error.
Please check the programming. After a graphics proxy has made changes
the data must be distributed using the method DISTRIBUTE_CHANGES before
another graphics proxy can make any changes.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message APPLG016 - DC: Only one GP is allowed to change data per distribution cycle ?

  The SAP error message APPLG016 indicates that there is an issue with the distribution cycle in the context of General Planning (GP) within the SAP system. Specifically, the error states that only one General Planner (GP) is allowed to change data per distribution cycle. This is a safeguard to prevent conflicts and inconsistencies that could arise if multiple planners were to modify the same data simultaneously.
  Cause:
  The error typically occurs due to the following reasons:
  
  Multiple GPs Attempting Changes: More than one General Planner is trying to make changes to the same data within the same distribution cycle.
  Locking Mechanism: SAP uses a locking mechanism to ensure data integrity. If one GP has locked the data for editing, another GP will receive this error when attempting to make changes.
  Configuration Issues: There may be configuration settings in the system that are not aligned with the intended use of multiple planners.
  
  Solution:
  To resolve the APPLG016 error, consider the following steps:
  
  
  Identify the Active GP: Check which General Planner is currently editing the data. You may need to communicate with your team to identify who is making changes.
  
  
  Wait for Release: If another GP is currently editing the data, wait until they have completed their changes and released the lock.
  
  
  Review Distribution Cycle Settings: Ensure that the distribution cycle is configured correctly. If your business process requires multiple planners to work simultaneously, you may need to review the configuration or consider alternative approaches.
  
  
  Use Change Logs: If applicable, utilize change logs or versioning to track changes made by different planners, which can help in managing data changes without conflicts.
  
  
  Consult Documentation: Refer to SAP documentation or your organization's SAP support team for specific guidance on handling this error in your system context.
  
  
  System Configuration: If the issue persists, it may be necessary to consult with your SAP Basis or technical team to review the system configuration and locking mechanisms.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  User Training: Ensure that all users involved in the planning process are trained on the proper procedures for editing data to minimize conflicts.
  System Performance: Monitor system performance and user activity to identify patterns that may lead to this error occurring frequently.
  
  By following these steps, you should be able to address the APPLG016 error effectively and ensure smoother operations within your SAP environment.