How To Fix CX_IUUC_RL021 - Transfer of logged replication data failed for table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CX_IUUC_RL - exception text for CL_IUUC_RL

• Message number: 021

• Message text: Transfer of logged replication data failed for table &1

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 CX_IUUC_RL021 - Transfer of logged replication data failed for table &1 ?

  The SAP error message CX_IUUC_RL021 indicates that there was a failure in transferring logged replication data for a specific table (denoted by &1). This error typically occurs in the context of SAP Landscape Transformation (SLT) or SAP Data Services when replicating data from a source system to a target system.
  Causes:
  
  Network Issues: Temporary network disruptions can prevent data from being transferred successfully.
  Configuration Errors: Incorrect configuration settings in the SLT or Data Services setup can lead to replication failures.
  Data Consistency Issues: If there are inconsistencies in the source data or if the source table is locked or undergoing changes, it can cause replication to fail.
  Resource Limitations: Insufficient resources (CPU, memory, disk space) on the source or target system can lead to failures in data transfer.
  Replication Queue Issues: Problems with the replication queue, such as being full or having corrupted entries, can also trigger this error.
  Authorization Issues: Lack of necessary authorizations for the user or service account performing the replication can lead to failures.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues between the source and target systems. Test the connection and resolve any connectivity problems.
  Review Configuration: Verify the SLT or Data Services configuration settings. Ensure that all parameters are correctly set up for the replication process.
  Monitor Source Data: Check the source table for any locks or ongoing transactions that might be affecting data consistency. Ensure that the data is stable and ready for replication.
  Resource Monitoring: Monitor system resources on both the source and target systems. If resources are low, consider optimizing performance or scaling up resources.
  Check Replication Queue: Inspect the replication queue for any errors or issues. You may need to clear or reset the queue if it is full or corrupted.
  Review Authorizations: Ensure that the user or service account has the necessary authorizations to perform the replication tasks.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SLT (for SLT configuration) or SLT_MONITOR (for monitoring replication) to check the status of the replication process.
  Logs and Traces: Check the SLT logs and traces for more detailed error messages that can provide insights into the root cause of the failure.
  SAP Notes: Look for relevant SAP Notes that may address specific issues related to this error message. SAP Notes often provide patches or workarounds for known issues.
  Documentation: Refer to the official SAP documentation for SLT or Data Services for best practices and troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it. If the issue persists, consider reaching out to SAP support for further assistance.