Message type: E = Error
Message class:  CNV_MBT_46 - PCL message class 
Message number: 463
Message text: PEB Member type is not valid; enter a valid value for PEB Member type
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_46463 indicates that there is an issue with the PEB (Personal Employment Benefits) Member type during a data migration or conversion process. This error typically arises in the context of SAP's data migration tools, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
Cause: The error occurs when the system encounters an invalid value for the PEB Member type. This could be due to several reasons: Incorrect Data Entry: The value entered for the PEB Member type does not match any of the valid options defined in the system.
Configuration Issues: The PEB Member types may not be properly configured in the system, or the relevant customizing settings may be missing. Data Mapping Errors: During the migration process, the mapping of data from the legacy system to the target system may not have been set up correctly, leading to invalid values being passed.
Solution: To resolve the error, you can take
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_MBT_46462 PEB Member is not valid; enter a valid value for PEB Member
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_46461 Phase is not valid. Enter a valid value for phase
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_46464 Select a row from the list
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_46465 No manual status can be set for optional activity & without executing
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.