How To Fix RSM1304 - No unassigned DataSources found in source system &1.

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM1 - Messages for AWB, Scheduler and Monitor (new)

• Message number: 304

• Message text: No unassigned DataSources found in source system &1.

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 RSM1304 - No unassigned DataSources found in source system &1. ?

  The SAP error message RSM1304: No unassigned DataSources found in source system &1 typically occurs when you are trying to replicate or load data from a source system into SAP BW (Business Warehouse) and the system cannot find any DataSources that are unassigned or available for use in the specified source system.
  Cause:
  
  No Unassigned DataSources: The primary cause of this error is that there are no DataSources in the specified source system that are not already assigned to a DataSource in BW.
  Incorrect Source System Configuration: The source system may not be properly configured or connected to the BW system.
  DataSource Activation: The DataSources may not be activated or may have been deleted or deactivated in the source system.
  Authorization Issues: The user may not have the necessary authorizations to view or access the DataSources in the source system.
  
  Solution:
  
  
  Check DataSource Assignment:
  
  Go to the DataSource maintenance transaction (e.g., RSA1 in BW).
  Check if there are any DataSources in the source system that are unassigned. If all DataSources are already assigned, you may need to create new ones or reassign existing ones.
  
  
  
  Activate DataSources:
  
  Ensure that the DataSources in the source system are activated. You can do this by navigating to the source system and checking the DataSource status.
  
  
  
  Review Source System Configuration:
  
  Verify that the source system is correctly configured in the BW system. Check the connection settings and ensure that the source system is active and reachable.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access the DataSources in the source system. This may involve checking roles and permissions in both the source and BW systems.
  
  
  
  Create New DataSources:
  
  If necessary, create new DataSources in the source system that can be used for data extraction.
  
  
  
  Use Transaction RSA5:
  
  You can use transaction RSA5 in the BW system to check the DataSources available in the source system and their status.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  RSA1: Data Warehousing Workbench
  RSA5: Source System DataSources
  RSA6: DataSource Maintenance
  
  
  Documentation: Refer to SAP Help documentation for detailed information on DataSource management and troubleshooting.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to DataSources and this error message.
  
  By following these steps, you should be able to identify the cause of the error and implement the necessary solutions to resolve it.