Message type: E = Error
Message class:  CNV_MBT_NE - Standard Messages for Notifications 
Message number: 105
Message text: Save
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_MBT_NE105 typically occurs during the execution of a data migration or conversion process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is an issue with saving the data or the configuration related to the migration process.
Cause: Data Validation Issues: The data being migrated may not meet the required validation rules or constraints defined in the target system. Configuration Errors: There may be misconfigurations in the migration settings or mapping that prevent the data from being saved. Authorization Issues: The user executing the migration may not have the necessary authorizations to perform the save operation. Technical Issues: There could be underlying technical issues such as database locks, connectivity problems, or system performance issues.
Solution: Check Data Validity: Review the data being migrated to ensure it meets all necessary validation rules. Correct any discrepancies found. Review Configuration: Go through the migration configuration settings and mappings to ensure
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_MBT_NE104 Data Loss Warning
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_MBT_NE103 Do you want to save changes?
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_MBT_NE106 Discard
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_MBT_PCL000 Activity ID is initial
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.