Message type: E = Error
Message class:  RSDSO_ACTIVATION - Texts for Activation of Requests in DataStore Objects 
Message number: 020
Message text: Error determining corresponding tables for InfoObject &1
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The SAP error message RSDSO_ACTIVATION020 typically occurs in the context of DataStore Objects (DSOs) when the system is unable to determine the corresponding tables for a specific InfoObject. This can happen for various reasons, and understanding the cause is crucial for resolving the issue. Causes: Missing or Incomplete InfoObject Definition: The InfoObject may not be fully defined or may be missing in the system. Transport Issues: If the InfoObject was transported from another system, there may have been issues during the transport process that led to incomplete or missing definitions. Activation Issues: The DSO or InfoObject may not have been activated properly, leading to inconsistencies in the metadata. Database Table Issues: The underlying database tables for the DSO may not exist or may be corrupted. Authorization Issues: The user may not have the necessary authorizations to access the InfoObject or its related tables. Solutions: Check InfoObject Definition: Go to the InfoObject maintenance transaction (e.g., RSA1) and verify that the
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