Standard SLAs aren't showing up in the migration tool
This article provides a resolution for an issue related to the deprecated service-level agreement (SLA) type in Dynamics 365 Customer Service.
Symptoms
The migration tool doesn't show the standard SLAs for migration in Dynamics 365 Customer Service.
Cause
Legacy SLAs consist of standard SLAs and enhanced SLAs. The migration tool supports only enhanced SLAs. Standard SLAs have been deprecated and are no longer supported in Unified Interface. Therefore, they aren't supported in the migration tool.
Resolution
You need to check the SLA type in the legacy web client interface and use enhanced SLAs for migration.