Message type: E = Error
Message class:  CNV_CMIS_M - Message class for CMIS Migration 
Message number: 030
Message text: Conflict resolved for migration object &1 field &2, paramter &3
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_CMIS_M030 typically occurs during the data migration process using the SAP Conversion and Migration tools, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This message indicates that there is a conflict that has been resolved for a specific migration object, field, and parameter.
Cause: The error message is generally triggered by one of the following reasons: Data Conflicts: There may be conflicting data entries in the source system that do not meet the requirements of the target system. This can happen if the data being migrated has duplicates, invalid formats, or does not comply with the target system's constraints. Mapping Issues: The mapping between the source and target fields may not be correctly defined, leading to conflicts during the migration process. Parameter Issues: The parameters defined for the migration object may not align with the data being migrated, causing conflicts.
Solution: To resolve the CNV_CMIS_M030 error, you can take the
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_CMIS_M029 Value is invalid; use F4 or enter a literal ('xxxx')
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_CMIS_M028 There are currently no unresolved conflicts
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_CMIS_M031 Conflict unresolved for migration object &1 field &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_CMIS_M032 There are & unresolved conflicts in the CNVMBTDOMCONFL table
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.