How To Fix CNV_IUUC_DB_CONN020 - BW Logsys for mass transfer ID &1 not maintained!

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_DB_CONN - db connection

• Message number: 020

• Message text: BW Logsys for mass transfer ID &1 not maintained!

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_DB_CONN020 - BW Logsys for mass transfer ID &1 not maintained! ?

  The SAP error message CNV_IUUC_DB_CONN020 typically indicates that there is an issue with the connection to the BW (Business Warehouse) system for a specific mass transfer ID. This error usually arises during data transfer processes, particularly in the context of SAP Landscape Transformation (SLT) or data migration scenarios.
  Cause:
  The error message suggests that the BW log system (Logsys) for the specified mass transfer ID is not maintained or configured correctly. This can happen due to several reasons:
  
  Missing Configuration: The Logsys for the mass transfer ID has not been set up in the BW system.
  Incorrect Mass Transfer ID: The mass transfer ID being referenced may not exist or may be incorrectly specified.
  Transport Issues: There may be issues with the transport of configuration settings between systems.
  Authorization Issues: The user may not have the necessary authorizations to access the BW log system.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check Mass Transfer ID:
  
  Verify that the mass transfer ID you are using is correct and exists in the system.
  
  
  
  Maintain Logsys:
  
  Go to transaction RSCUSTV10 in the BW system.
  Check if the Logsys for the specified mass transfer ID is maintained. If not, you will need to create or update the Logsys configuration.
  
  
  
  Configure Data Transfer:
  
  Ensure that the data transfer settings are correctly configured in the SLT or data migration settings.
  You may need to set up the connection between the source system and the BW system properly.
  
  
  
  Check Authorizations:
  
  Ensure that the user executing the data transfer has the necessary authorizations to access the BW log system.
  
  
  
  Review SLT Configuration:
  
  If you are using SLT, check the SLT configuration to ensure that the connection to the BW system is correctly set up.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific error message for additional troubleshooting steps.
  
  
  
  Contact SAP Support:
  
  If the issue persists after following the above steps, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSCUSTV10 (for maintaining BW settings) and SLT Configuration transactions.
  SAP Notes: Search for SAP Notes related to the error message for any known issues or patches.
  Documentation: Review SAP Help documentation for BW and SLT for best practices in configuration and troubleshooting.
  
  By following these steps, you should be able to identify and resolve the issue related to the CNV_IUUC_DB_CONN020 error message.