How To Fix CNV_DMC_HC077 - No changes have been made; no data saved

CNV_DMC_HC077 - Overview

• Message type: E = Error

• Message class: CNV_DMC_HC -

• Message number: 077

• Message text: No changes have been made; no data saved

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_HC077 - Details

• The SAP error message CNV_DMC_HC077: No changes have been made; no data saved typically occurs during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This message indicates that the system did not detect any changes to the data that would warrant saving or processing.
  Causes:
  
  No Data Changes: The most common cause is that the data being processed has not been modified or updated. This can happen if the source data is identical to the target data.
  Incorrect Mapping: If the mapping of fields between the source and target systems is incorrect, it may lead to no changes being detected.
  Validation Errors: If there are validation rules in place that the data does not meet, the system may prevent saving any changes.
  Data Filters: Filters applied during the migration process may exclude all records, resulting in no changes being processed.
  Technical Issues: There could be underlying technical