How To Fix RSDME859 - Model &1 is detached from BW DataSource &3

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDME -

• Message number: 859

• Message text: Model &1 is detached from 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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSDME859 - Model &1 is detached from BW DataSource &3 ?

  The SAP error message RSDME859 indicates that a specific model (in this case, &1) is detached from a BW DataSource (indicated by &3). This typically occurs in the context of SAP BW (Business Warehouse) when there is a disconnection between the data model and the underlying data source.
  Cause:
  
  DataSource Deactivation: The DataSource might have been deactivated or deleted in the SAP BW system.
  Model Changes: Changes made to the model or DataSource configuration can lead to detachment.
  Transport Issues: If the model or DataSource was transported from one system to another, it might not have been properly configured in the target system.
  Version Mismatch: There could be a version mismatch between the model and the DataSource.
  Technical Issues: There may be underlying technical issues or inconsistencies in the BW system.
  
  Solution:
  
  
  Reattach the Model:
  
  Go to the Data Warehousing Workbench (transaction RSA1).
  Navigate to the relevant InfoProvider or model.
  Check the DataSource settings and reattach the model to the DataSource if necessary.
  
  
  
  Check DataSource Status:
  
  Ensure that the DataSource is active. You can check this in the DataSource maintenance transaction (transaction RSA2).
  If it is inactive, reactivate it.
  
  
  
  Review Transport Requests:
  
  If the issue arose after a transport, ensure that all related objects were transported correctly.
  Check for any missing objects or dependencies.
  
  
  
  Recreate the Model:
  
  If the model is significantly corrupted or cannot be reattached, consider recreating the model from scratch.
  
  
  
  Check for Updates:
  
  Ensure that your SAP BW system is up to date with the latest patches and updates, as some issues may be resolved in newer versions.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes that might address this specific error. SAP Notes often provide solutions or workarounds for known issues.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  RSA1: Data Warehousing Workbench
  RSA2: DataSource Maintenance
  
  
  Documentation: Refer to SAP Help documentation for detailed information on managing DataSources and models in BW.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or BW support team for further investigation.