How To Fix CJ302 - Select only one entry

SAP Error Message - Details

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 302

• Message text: Select only one entry

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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Smart SAP Assistant

• What is the cause and solution for SAP error message CJ302 - Select only one entry ?

  The SAP error message CJ302 ("Select only one entry") typically occurs in the context of project management within the SAP system, particularly when dealing with project structures, WBS (Work Breakdown Structure) elements, or related transactions. This error indicates that the system expects the user to select only one entry for processing, but multiple entries have been selected instead.
  Cause:
  
  Multiple Selections: The most common cause of this error is that the user has selected multiple WBS elements or project items when the transaction or function requires a single selection.
  Transaction Limitations: Certain transactions in SAP are designed to operate on a single object at a time, and selecting more than one object violates this requirement.
  User Interface Issues: Sometimes, the user interface may allow multiple selections, but the underlying logic of the transaction does not support it.
  
  Solution:
  
  Single Selection: Ensure that you only select one WBS element or project item when executing the transaction that triggered the error. Deselect any additional entries before proceeding.
  Review Transaction Requirements: Check the documentation or help for the specific transaction you are using to understand its requirements regarding selection.
  Use Filters: If you are working with a list of entries, use filters to narrow down your selection to a single item before executing the action.
  Check for Batch Processing: If you need to process multiple entries, look for alternative transactions or methods that support batch processing or mass changes.
  
  Related Information:
  
  Transaction Codes: This error can occur in various transaction codes related to project management, such as CJ20N (Project Builder), CJ02 (Change WBS Element), or CJ03 (Display WBS Element).
  SAP Notes: Check SAP Notes for any known issues or updates related to the specific transaction you are using.
  User Training: Ensure that users are trained on the correct procedures for selecting entries in SAP to avoid this error in the future.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP support team or refer to SAP documentation for further assistance.