How To Fix RSDME781 - Source &2 of Model &1 is already attached to BW DataSource &3

RSDME781 - Overview

• Message type: E = Error

• Message class: RSDME -

• Message number: 781

• Message text: Source &2 of Model &1 is already attached to BW DataSource &3

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 RSDME781 - Source &2 of Model &1 is already attached to BW DataSource &3 ?

  The SAP error message RSDME781 indicates that there is an issue with the attachment of a source to a BW (Business Warehouse) DataSource. Specifically, it means that the source object (like a table or view) is already linked to another BW DataSource, which prevents it from being attached to the DataSource you are trying to create or modify.
  
  Cause:
  
  Duplicate Attachment: The source object (e.g., a database table or view) is already associated with a different BW DataSource.
  Modeling Conflicts: There may be a conflict in the data model where the same source is being used in multiple places, leading to this error when trying to attach it to a new DataSource.
  
  
  Solution:
  
  
  Check Existing Attachments:
  
  Go to the Data Warehousing Workbench (transaction RSA1).
  Navigate to the DataSources and check if the source object is already attached to another DataSource.
  If it is, you may need to decide whether to use the existing DataSource or create a new