How To Fix CNV_IUUC_REPLICATION304 - Deletion of connection parameters to the initial load system failed

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_REPLICATION - IUUC replication messages (HANA)

• Message number: 304

• Message text: Deletion of connection parameters to the initial load system failed

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_REPLICATION304 - Deletion of connection parameters to the initial load system failed ?

  The SAP error message CNV_IUUC_REPLICATION304 indicates that there was a failure in deleting connection parameters to the initial load system during a data replication process. This error typically occurs in the context of SAP Landscape Transformation (SLT) or when using SAP Data Services for data replication.
  Cause:
  The error can be caused by several factors, including:
  
  Authorization Issues: The user executing the operation may not have the necessary authorizations to delete connection parameters.
  System Configuration: There may be misconfigurations in the SLT setup or the connection parameters themselves.
  Active Replication: If there are ongoing replication processes, the system may prevent changes to connection parameters.
  Database Locks: There could be locks on the database that prevent the deletion of the connection parameters.
  Technical Issues: There may be underlying technical issues, such as network problems or database connectivity issues.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Authorizations: Ensure that the user has the necessary authorizations to perform the deletion of connection parameters. This may involve checking roles and permissions in the SAP system.
  
  
  Review Configuration: Verify the configuration settings for the SLT or data replication setup. Ensure that all parameters are correctly defined and that there are no inconsistencies.
  
  
  Stop Active Replication: If there are active replication processes, consider stopping them before attempting to delete the connection parameters. This can often be done through the SLT configuration or management interface.
  
  
  Check for Locks: Use transaction codes like SM12 to check for any locks on the database that may be preventing the deletion. If locks are found, you may need to resolve them.
  
  
  Review Logs: Check the SLT logs or application logs for more detailed error messages that can provide additional context on why the deletion failed. This can be done using transaction SLG1.
  
  
  Restart Services: In some cases, restarting the SLT services or the relevant application server may help resolve transient issues.
  
  
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently updates their knowledge base with solutions for known issues.
  
  
  Contact SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SLT, SM12, SLG1, and SE11 for database table checks.
  Documentation: Review the official SAP documentation for SLT and data replication for best practices and troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to diagnose and resolve the CNV_IUUC_REPLICATION304 error effectively.