How To Fix CNV_DMC_SIN571 - Unexpected change number &1

CNV_DMC_SIN571 - Overview

• Message type: E = Error

• Message class: CNV_DMC_SIN - Messages for s-innovations migration

• Message number: 571

• Message text: Unexpected change number &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.

CNV_DMC_SIN571 - Details

• The SAP error message CNV_DMC_SIN571 with the description "Unexpected change number &1" typically occurs during data migration processes, particularly when using the SAP Data Migration Cockpit (DMC) or during the execution of a migration project. This error indicates that the system encountered a change number that it did not expect, which can disrupt the data migration process.
  Causes:
  
  Inconsistent Change Numbers: The change number being processed does not match the expected sequence or is not recognized by the system.
  Data Migration 
  Configuration Issues: There may be misconfigurations in the migration settings or parameters that lead to unexpected change numbers.
  Concurrent Changes: If there are concurrent changes being made to the data while the migration is in progress, it can lead to discrepancies in change numbers.
  System or Version Mismatch: The source and target systems may not be aligned correctly in terms of data structure or version, leading to unexpected behavior.
  
  Solutions:
  
  Check Change Number Configuration: Review the