How To Fix /PM0/ABD_INT_MESSAGE018 - An external system is not allowed to process a distribution plan

/PM0/ABD_INT_MESSAGE018 - Overview

• Message type: E = Error

• Message class: /PM0/ABD_INT_MESSAGE -

• Message number: 018

• Message text: An external system is not allowed to process a distribution plan

Self-Explanatory Message

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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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/PM0/ABD_INT_MESSAGE018 - Details

• The SAP error message /PM0/ABD_INT_MESSAGE018 indicates that an external system is not permitted to process a distribution plan. This error typically arises in the context of SAP Advanced Planning and Optimization (APO) or similar modules where distribution plans are managed.
  
  Cause:
  
  Authorization Issues: The external system may not have the necessary permissions to access or process the distribution plan.
  Configuration Settings: The system may be configured to restrict external systems from processing certain types of plans or data.
  Integration Issues: There may be a problem with the integration setup between SAP and the external system, leading to restrictions on data processing.
  Plan Status: The distribution plan may be in a status that does not allow processing by external systems (e.g., it may be locked or in a draft state).
  
  
  Solution:
  
  Check Authorizations: Ensure that the user or system account being used by the external system has the necessary authorizations to access and process the distribution plan.
  Review Configuration: