How To Fix CNV_IUUC_TCR_MAIN019 - Preprocessing activity in source system failed

CNV_IUUC_TCR_MAIN019 - Overview

• Message type: E = Error

• Message class: CNV_IUUC_TCR_MAIN - transactional consistent replication main package

• Message number: 019

• Message text: Preprocessing activity in source system failed

What causes this issue?

The preprocessing activity has stopped due to an unknown error.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_IUUC_TCR_MAIN019 - Details

• The SAP error message CNV_IUUC_TCR_MAIN019 indicates that a preprocessing activity in the source system has failed during a data migration or conversion process, typically related to the SAP Landscape Transformation (SLT) or SAP Data Migration projects. This error can occur for various reasons, and understanding the cause is crucial for resolving it.
  Possible Causes:
  
  Data Consistency Issues: There may be inconsistencies in the data being processed, such as missing or invalid entries.
  Configuration Errors: Incorrect configuration settings in the source system or in the migration tool can lead to failures.
  Authorization Issues: The user executing the migration may not have the necessary authorizations to perform the required actions.
  Technical Errors: There could be underlying technical issues, such as database connectivity problems, system resource limitations, or software bugs.
  Locking Issues: If the data being processed is locked by another transaction, it can lead to a failure in the preprocessing step.
  
  Solutions:
  
  Check Logs: Review the detailed logs associated with