Message type: E = Error
Message class:  ESH_BI_CONTENT_GEN - Messeges for BI content generation 
Message number: 018
Message text: Source system &1 is not active (no entry available in RSBASIDOC)
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The SAP error message ESH_BI_CONTENT_GEN018 indicates that the source system specified (denoted as &1 in the error message) is not active, meaning that there is no entry available in the RSBASIDOC table for that source system. This typically occurs in scenarios involving Business Intelligence (BI) content generation or data extraction processes.
Cause: Inactive Source System: The source system you are trying to access is not active in the SAP system. This could be due to it not being configured properly or it being deactivated. Missing Entry in RSBASIDOC: The RSBASIDOC table, which holds the information about the source systems, does not have an entry for the specified source system. Authorization Issues: There may be authorization issues preventing access to the source system. Network Issues: If the source system is remote, there may be network connectivity issues.
Solution: Check Source System Configuration: Go to the transaction code RSA1 (Data Warehousing Workbench). Navigate to the Source Systems section and verify that
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