Message type: E = Error
Message class:  CNV_DMC_MC - Migration Object Modeler 
Message number: 111
Message text: &1 is not a valid domain; specify a valid domain
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_DMC_MC111 indicates that a specified domain is not valid in the context of a data migration or conversion process. This error typically arises during the execution of a data migration project using the SAP Data Migration Cockpit or similar tools.
Cause: Invalid Domain Name: The domain specified in the migration configuration does not exist in the SAP system. This could be due to a typo or an incorrect reference. Domain Not Activated: The domain might not be activated or properly configured in the system. Authorization Issues: The user executing the migration may not have the necessary authorizations to access the specified domain. Configuration Errors: There may be issues in the configuration settings of the migration project that lead to the system not recognizing the domain.
Solution: Verify Domain Name: Check the domain name specified in the migration configuration. Ensure that it is spelled correctly and matches the existing domains in the system. Check Domain
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_DMC_MC110 Cannot use domain; there is no field for the domain in the value table &1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_DMC_MC109 Cannot check target values for domain &1; check the domain
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_DMC_MC112 No field selected
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_DMC_MC113 Key field &1 of &3 will be excluded from the staging table; see long text
What causes this issue?  For view &V2&, the key field &V1& of the source structure &V3& is set to ?Not Visible?. This means th...
Click on this link to search all SAP messages.