How To Fix RSO421 - Object &1 &2 is required by &3 (&4)

SAP Error Message - Details

• Message type: E = Error

• Message class: RSO - BW Repository

• Message number: 421

• Message text: Object &1 &2 is required by &3 (&4)

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 RSO421 - Object &1 &2 is required by &3 (&4) ?

  The SAP error message RSO421 indicates that a specific object (like a query, InfoProvider, or other data source) is required by another object, but it is missing or not available. This error typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when there are dependencies between objects.
  Cause:
  The error message RSO421 usually arises due to one of the following reasons:
  
  Missing Object: The object that is required (e.g., an InfoObject, InfoProvider, or query) is not available in the system.
  Incorrect Configuration: The configuration of the object that is trying to access the required object is incorrect or incomplete.
  Transport Issues: If the objects were transported from one system to another (e.g., from development to production), the required object may not have been included in the transport.
  Deletion or Inactivation: The required object may have been deleted or deactivated in the system.
  
  Solution:
  To resolve the RSO421 error, you can follow these steps:
  
  
  Check Object Availability:
  
  Verify that the object mentioned in the error message (e.g., &1, &2) exists in the system. You can do this by navigating to the relevant transaction (like RSA1 for InfoProviders) and checking if the object is listed.
  
  
  
  Review Dependencies:
  
  Check the dependencies of the object that is throwing the error (e.g., &3). Ensure that all required objects are active and correctly configured.
  
  
  
  Transport Check:
  
  If the issue arose after a transport, ensure that all necessary objects were included in the transport request. You may need to re-transport the missing objects.
  
  
  
  Recreate or Reactivate:
  
  If the required object has been deleted or deactivated, consider recreating or reactivating it. This may involve restoring it from a backup or re-creating it manually.
  
  
  
  Check for Authorizations:
  
  Ensure that you have the necessary authorizations to access the required objects. Sometimes, authorization issues can lead to similar error messages.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific objects involved for any known issues or additional troubleshooting steps.
  
  
  
  Related Information:
  
  Transaction Codes: Common transaction codes to check objects include RSA1 (Data Warehousing Workbench), RSD1 (InfoObject Maintenance), and RSRT (Query Monitor).
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the RSO421 error.
  Logs and Traces: Check system logs and traces for additional information that may help diagnose the issue.
  
  By following these steps, you should be able to identify and resolve the cause of the RSO421 error in your SAP environment.