How To Fix /SAPAPO/PE145 - Internal error in PSM: Object reference does not exist

/SAPAPO/PE145 - Overview

• Message type: E = Error

• Message class: /SAPAPO/PE -

• Message number: 145

• Message text: Internal error in PSM: Object reference does not exist

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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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/SAPAPO/PE145 - Details

• The SAP error message /SAPAPO/PE145 Internal error in PSM: Object reference does not exist typically occurs in the context of SAP Advanced Planning and Optimization (APO), particularly within the Production and Supply Management (PSM) module. This error indicates that the system is trying to access an object that does not exist or is not properly defined in the system.
  Causes:
  
  Missing Master Data: The error may arise if the required master data (like materials, resources, or production versions) is missing or not properly maintained.
  Inconsistent Data: There may be inconsistencies in the data, such as broken links between objects or missing relationships.
  
  Configuration Issues: Incorrect configuration settings in the APO system can lead to this error.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production), there might be missing objects or incomplete transport requests.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain objects,