How To Fix RJ121 - Not possible to handle DataSources for data marts

RJ121 - Overview

• Message type: E = Error

• Message class: RJ - BW Extractor Handling Message Class

• Message number: 121

• Message text: Not possible to handle DataSources for data marts

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 RJ121 - Not possible to handle DataSources for data marts ?

  The SAP error message RJ121, which states "Not possible to handle DataSources for data marts," typically occurs in the context of SAP BW (Business Warehouse) or SAP BW/4HANA when there are issues related to the DataSources that are being used for data mart operations. This error can arise due to various reasons, and understanding the cause is essential for finding a solution.
  Causes of RJ121 Error
  
  
  DataSource 
  Configuration Issues: The DataSource may not be properly configured or activated. This can include missing fields, incorrect mappings, or other configuration errors.
  
  
  Data Mart Settings: The settings for the data mart may not be correctly defined, leading to incompatibility with the DataSources.
  
  
  DataSource Compatibility: The DataSource may not be compatible with the data mart. This can happen if the DataSource is not designed to work with the specific data mart or if there are version mismatches.
  
  
  Transport Issues: If the DataSource was transported from another system, there may