How To Fix /PLMI/PPECMP373 - Reference of &1 &2 to &3 from &4 not allowed

/PLMI/PPECMP373 - Overview

• Message type: E = Error

• Message class: /PLMI/PPECMP -

• Message number: 373

• Message text: Reference of &1 &2 to &3 from &4 not allowed

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMI/PPECMP373 - Reference of &1 &2 to &3 from &4 not allowed ?

  The SAP error message /PLMI/PPECMP373 Reference of &1 &2 to &3 from &4 not allowed typically occurs in the context of SAP's Project Management or Project System modules. This error indicates that there is an issue with the referencing of objects, such as projects, networks, or activities, which is not permitted according to the system's rules or configuration.
  
  Cause:
  
  Invalid Reference: The error usually arises when there is an attempt to reference an object (like a project or activity) that is not allowed due to the current configuration or status of the objects involved.
  Hierarchy Issues: The objects may not be in the correct hierarchical relationship, or the reference may violate the defined structure.
  Status Restrictions: The status of the referenced object may not allow for the operation being attempted (e.g., a project that is closed or archived).
  Configuration Settings: There may be specific settings in the project management configuration that restrict certain types of