The backup operation fails during the quiesce operation if the tenant database is inaccessible or invalid tenant database name is provided.
SCC-00164: Application quiesce for plug-in [hana] failed with exit code [1] and with error : Tenant Database : [R85INVALID] either does not exist or it is inactive Client Verification failed for resource: [R85\R85INVALID]
Verify that the tenant database is valid and active.