Failed Transactions owing to missing permissions
User tries to perform migration but the transaction fails.
The user may not have been assigned the relevant permissions.
Provide user with complete access to the SMS-Magic Objects(Conversation, Incoming SMS, SMS History) so as to prevent transactions from failing.
Post migration, user notices that all messages have not been migrated.
The sender Ids and mobile phone numbers on records from which messages were sent and received, may have been changed.
Once migration is completed, verify all sender IDs and update them manually if required.