Work flow for FIPP only for (FB50 & FV60 ) with release approval

Hello Expert ,

Requirement

Hello Experts,

I am new to workflow and am working on Journal Voucher Approval workflow (FIPP : Business Object). I have maintained workflow variant and other settings in SPRO- FINANCIAL ACCOUNTING - TOOLS - WORKFLOW.

Can somebody guide me on whether should I triger workflow for only particular transaction like (FB50 or FV60) only . ?

also i want to know is how to maintain customization for release approval procedure?

Requirement :

value 0 to 100000 Single Level Release

Value greater than 100001 Two level release.