How To Fix /PLMB/BA_RCP873 - Primary resource is already selected on the root element

/PLMB/BA_RCP873 - Overview

• Message type: E = Error

• Message class: /PLMB/BA_RCP -

• Message number: 873

• Message text: Primary resource is already selected on the root element

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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/PLMB/BA_RCP873 - Details

• The SAP error message /PLMB/BA_RCP873 Primary resource is already selected on the root element typically occurs in the context of SAP PLM (Product Lifecycle Management) when dealing with resource assignments in a project or process. This error indicates that there is an attempt to assign a primary resource to a root element (such as a project or task) that already has a primary resource assigned.
  
  Cause:
  
  Duplicate Assignment: The primary resource for the root element has already been assigned, and the system does not allow multiple primary resources for the same element.
  
  Configuration Issues: There may be issues with the configuration of the resource management settings in SAP PLM.
  User Error: The user may be attempting to assign a primary resource without realizing that one is already assigned.
  
  
  Solution:
  
  
  Check Existing Assignments: Review the current assignments for the root element to see if a primary resource is already assigned. You can do this by navigating to