How To Fix RSDS401 - No mapping in RSLOGSYSMAP for source system &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDS - New DataSource

• Message number: 401

• Message text: No mapping in RSLOGSYSMAP for source system &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDS401 - No mapping in RSLOGSYSMAP for source system &1 ?

  The SAP error message RSDS401 indicates that there is no mapping found in the RSLOGSYSMAP table for the specified source system. This typically occurs in the context of data extraction from a source system to a target system, often in SAP BW (Business Warehouse) or SAP HANA environments.
  Cause:
  The error can be caused by several factors:
  
  Missing Mapping: The source system is not properly mapped in the RSLOGSYSMAP table. This table is used to define the relationship between source systems and their corresponding logical systems in SAP BW.
  Incorrect Source System Configuration: The source system may not be correctly configured in the SAP BW system.
  Transport Issues: If the mapping was recently transported from another system, it may not have been transported correctly or completely.
  System Changes: Changes in the source system or BW system configuration that have not been reflected in the mapping.
  
  Solution:
  To resolve the RSDS401 error, you can follow these steps:
  
  
  Check RSLOGSYSMAP Table:
  
  Go to transaction SE11 (Data Dictionary) and check the contents of the RSLOGSYSMAP table.
  Ensure that there is an entry for the source system in question. If not, you will need to create one.
  
  
  
  Create Mapping:
  
  If the mapping is missing, you can create it manually. Use transaction RSA1 to navigate to the Data Warehousing Workbench.
  Go to the "Source Systems" section, find your source system, and ensure it is properly configured and mapped.
  
  
  
  Check Source System Configuration:
  
  Ensure that the source system is correctly configured in the BW system. This includes checking the logical system name and ensuring it matches the source system.
  
  
  
  Transport Requests:
  
  If the mapping was supposed to be transported, check the transport requests to ensure they were imported correctly. You may need to re-import the transport or manually create the mapping.
  
  
  
  Check for System Changes:
  
  If there have been recent changes to the source system or BW system, verify that all necessary configurations and mappings are still intact.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific version of SAP you are using for any additional troubleshooting steps or known issues.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  RSA1: Data Warehousing Workbench
  SE11: Data Dictionary
  SM37: Job Monitoring (to check for any related background jobs that may have failed)
  
  
  
  SAP Notes: Check SAP Notes for any specific issues related to your version of SAP BW or the source system you are using.
  
  
  Logs: Review logs for any additional error messages that may provide more context about the issue.
  
  
  By following these steps, you should be able to identify and resolve the cause of the RSDS401 error in your SAP environment.