RE: Is there a way to create different purchase approval workflows for different project types?
there is no internal workflow in BC, but you could set up the filters to fit your needs such as limit to amount, or to a certain vendor etc. The filters are set up under Event conditions. However, if you are new to workflow, the task of setting up a new one might be a little challenging.
If the new one would be similar to the existing one, you could export it and then create a new one by importing back. Then you could modify as needed.
here is a link you could refer to
business-central.to-increase.com/.../across-how-to-create-workflows
but setting up a working workflow requires some testing and it usually involved several users as requester and approvers.
A partner is able to set up workflow but unable to test it due to MS imposed limit on their license.
There are some moving pieces to tweak to make it work as well but it very difficult to provide a step by step instruction.
hope it will help.