How To Fix DPR_SHARED303 - &1 &2 already exists in the list; list remains unchanged

SAP Error Message - Details

• Message type: E = Error

• Message class: DPR_SHARED - Development Projects: Messages for Shared Objects

• Message number: 303

• Message text: &1 &2 already exists in the list; list remains unchanged

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 DPR_SHARED303 - &1 &2 already exists in the list; list remains unchanged ?

  The SAP error message DPR_SHARED303 typically occurs in the context of SAP Project Management or SAP Portfolio and Project Management (PPM). This error indicates that an attempt was made to add an item (such as a project, task, or resource) to a list, but the item already exists in that list. As a result, the list remains unchanged.
  Cause:
  The error is caused by trying to add a duplicate entry to a list where unique entries are required. This can happen in various scenarios, such as:
  
  Adding a project or task that has already been included in the project structure.
  Attempting to assign a resource that is already assigned to a project or task.
  Importing data that contains duplicates.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check for Duplicates: Review the list you are trying to modify and check if the item you are trying to add already exists. You can do this by:
  
  Navigating to the relevant project or task list.
  Searching for the item using its identifier (e.g., project ID, task ID).
  
  
  
  Remove or Modify Existing Entries: If you find that the item already exists and you need to make changes, consider:
  
  Removing the existing entry if it is no longer needed.
  Modifying the existing entry instead of adding a new one.
  
  
  
  Use Unique Identifiers: Ensure that any new entries you are trying to add have unique identifiers. This may involve checking naming conventions or ID formats.
  
  
  Data Import Validation: If you are importing data (e.g., from Excel or another system), ensure that the data does not contain duplicates before the import process.
  
  
  Consult Documentation: If you are unsure about the specific context of the error, refer to SAP documentation or help resources related to the specific module you are working with.
  
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using specific transaction codes related to project management (e.g., CJ20N for project planning).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Permissions: Ensure that you have the necessary permissions to modify the lists in question, as restrictions may also lead to unexpected behavior.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.