How To Fix /SAPAPO/ATP102 - Plng object &1 and basic method &2 have been locked (check not possible)

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/ATP -

• Message number: 102

• Message text: Plng object &1 and basic method &2 have been locked (check not possible)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/ATP102 - Plng object &1 and basic method &2 have been locked (check not possible) ?

  The SAP error message /SAPAPO/ATP102 indicates that a planning object and a basic method are locked, which prevents the system from performing the necessary checks for Available-to-Promise (ATP) calculations. This error typically occurs in the context of Advanced Planning and Optimization (APO) in SAP.
  
  Cause:
  
  Locking Mechanism: The error is primarily caused by the locking mechanism in SAP. When a planning object (like a product or location) is being processed or modified by another user or process, it gets locked to prevent data inconsistencies. If another user tries to access the same object, they will encounter this error.
  Long-running Processes: If a long-running transaction or background job is holding the lock, it can lead to this error for other users trying to access the same planning object.
  System Configuration: Incorrect configuration of the planning object or basic method can also lead to locking issues.
  
  
  Solution:
  
  Identify the Lock: Use transaction code SM12 to check for locks