How To Fix /PM0/3FB_MESSAGES057 - ADD_OPERATION only allowed in root object

/PM0/3FB_MESSAGES057 - Overview

• Message type: E = Error

• Message class: /PM0/3FB_MESSAGES -

• Message number: 057

• Message text: ADD_OPERATION only allowed in root object

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 /PM0/3FB_MESSAGES057 - ADD_OPERATION only allowed in root object ?

  The SAP error message /PM0/3FB_MESSAGES057 ADD_OPERATION only allowed in root object typically occurs in the context of SAP's Project Management or similar modules where operations or modifications are being attempted on a project structure or hierarchy.
  
  Cause:
  This error indicates that an attempt was made to add an operation (like a task or a sub-project) to a node in the project hierarchy that is not the root object. In SAP project structures, certain operations can only be performed at the root level of the project hierarchy. If you try to add an operation to a sub-node or a non-root object, this error will be triggered.
  
  Solution:
  To resolve this error, you should:
  
  
  Identify the Current Node: Check the current node in the project hierarchy where you are trying to add the operation. Ensure that you are at the root level of the project.
  
  
  Navigate to the Root Object: If you are not at the root level,