We were using the XNP-MSG-Types default out processing in 12.1.3 which is not there in 12.2.10

We are upgrading from 12.1.3 to 12.2.10 . We were using the XNP-MSG-Types default out processing in 12.1.3 where there is the user hook where we allied custom logic.  As the Number provisioning integration is removed in 12.2.10, the user hook is not working.

As a result, the sub_type_id values are not getting stored in csi_t_txn_line_details, without explicitly opening the installation details form . On Opening, it automatically populates the correct subtype and saves. But this is a deviation from the existing 12.1.3 functionality.

Did anyone encounter this issue of setting default transaction subtype in 12.2.10 either by personalization to default the transaction subtypes  or is there any other solution?