How To Fix /SAPAPO/MAT818 - User is already assigned to a standard planner

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MAT -

• Message number: 818

• Message text: User is already assigned to a standard planner

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/MAT818 - User is already assigned to a standard planner ?

  The SAP error message /SAPAPO/MAT818 indicates that a user is already assigned to a standard planner in the SAP Advanced Planning and Optimization (APO) module. This typically occurs when a user attempts to assign themselves or another user to a planner role that is already occupied.
  Cause:
  
  User Assignment Conflict: The user you are trying to assign is already linked to a standard planner in the system.
  Role Restrictions: The system restricts multiple users from being assigned to the same planner role to maintain data integrity and avoid conflicts in planning activities.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Current Assignments:
  
  Use transaction code /SAPAPO/SDP94 or /SAPAPO/PLN01 to check the current assignments of users to planners.
  Identify if the user is already assigned to a planner.
  
  
  
  Reassign Users:
  
  If the user needs to be assigned to a different planner, you may need to remove their current assignment first.
  Use transaction code /SAPAPO/PLN01 to manage planner assignments. You can remove the user from the existing planner role and then assign them to the new one.
  
  
  
  Consult with Your Administrator:
  
  If you do not have the necessary permissions to change user assignments, contact your SAP system administrator or the person responsible for user management in your organization.
  
  
  
  Review User Roles:
  
  Ensure that the user has the appropriate roles and authorizations to be assigned to the desired planner.
  
  
  
  Documentation and Training:
  
  Ensure that users are trained on how to manage planner assignments to avoid conflicts in the future.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or updates regarding this error message.
  User Management: Familiarize yourself with user management and planner assignment processes in SAP APO to prevent similar issues.
  System Configuration: Review the configuration settings for planners in your SAP system to ensure they align with your organizational needs.
  
  By following these steps, you should be able to resolve the /SAPAPO/MAT818 error and manage user assignments effectively in SAP APO.