How To Fix /SAPAPO/OM_ERROR2386 - ATP: COM routine was not called in an active planning version

/SAPAPO/OM_ERROR2386 - Overview

• Message type: E = Error

• Message class: /SAPAPO/OM_ERROR2 -

• Message number: 386

• Message text: ATP: COM routine was not called in an active planning version

Self-Explanatory Message

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• What is the cause and solution for SAP error message /SAPAPO/OM_ERROR2386 - ATP: COM routine was not called in an active planning version ?

  The SAP error message /SAPAPO/OM_ERROR2386 ATP: COM routine was not called in an active planning version typically occurs in the context of Advanced Planning and Optimization (APO) when there is an issue with the availability check (ATP - Available to Promise) in a planning version that is not active. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  Inactive Planning Version: The error indicates that the ATP check is being attempted in a planning version that is not currently active. In SAP APO, planning versions are used to manage different scenarios or versions of planning data, and only one version can be active at a time.
  
  Configuration Issues: There may be configuration issues in the APO system that prevent the ATP check from being executed properly.
  Data Consistency: There might be inconsistencies in the data or settings related to the planning version or the ATP check.
  
  
  Solution:
  
  
  Activate the Planning Version:
  
  Go to the