Message type: E = Error
Message class:  CNV10994 - Message class for CNV_10994 
Message number: 228
Message text: No non-relevant object classes identified for exclusion
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 CNV10994228, which states "No non-relevant object classes identified for exclusion," typically occurs during the execution of a data migration or conversion process, particularly when using SAP's Conversion Tools or during system migrations.
Cause: This error indicates that the system was unable to identify any object classes that are deemed non-relevant for the migration or conversion process. This can happen for several reasons:
Configuration Issues: The configuration settings for the migration might not be set up correctly, leading to the system not recognizing any non-relevant object classes. Missing or Incorrect Object Class Definitions: The object classes that should be excluded may not be defined in the system or may be incorrectly configured. Data Model Changes: If there have been changes to the data model or the object classes in the source or target system, it may lead to this error. Version Compatibility: The tools or methods being used for migration may not be
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV10994227 No change document tables found for package &1 in phase C
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV10994226 No tables selected for a restricted selection
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV10994229 CDCLS: with restricted selection
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV10994230 Error during background scheduling of CNV_10994_FIND_UNKNOWN_OBJECTS
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.