Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 128
Message text: Rename of groups and sets leads to no inconsistencies
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.
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.
The SAP error message CNV_20100128 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This specific error indicates that there are inconsistencies arising from the renaming of groups and sets in the context of data migration.
Cause: The error message suggests that the renaming of groups and sets has led to inconsistencies in the data model or the mapping of data. This can occur due to several reasons, including: Data Mapping Issues: The mapping of old group names to new group names may not be correctly defined, leading to discrepancies. Dependency Conflicts: Other data objects or processes may depend on the original group or set names, causing conflicts when those names are changed. Incomplete Migration: If the migration process was interrupted or not completed successfully, it could leave the system in an inconsistent state. Configuration Errors: Incorrect configuration settings in the migration tool
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_20100127 Error during rename of set &1, &2, &3
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_20100126 CoA mapping &1 -> &2 with 'Copy Rows': Scenario &3 not released
What causes this issue?  The mapping &V1& -> &V2& with <ZK>Copy Rows</> indicator set only makes sense in combination w...
CNV_20100129 Problem due to conversion to existing set &1, &2, &3
What causes this issue?  When simulating the set rename, the system found that an old set would be converted into an existing set &V1&, set cl...
CNV_20100130 Problem due to multiple conversions to group/set &1, &2, &3
What causes this issue?  When simulating the set rename, the system found that two or more old sets would be converted to the same set name &V1&am...
Click on this link to search all SAP messages.