Spend Authorization Approval When Supplier is created directly without prior registration process

Summary:

I would like to know whether it is possible to route the supplier for approvals when the user creates the supplier directly as Spend Authorized using Create Supplier UI.

Content (required):

I would like to know whether it is possible to route the supplier for approvals when the user creates the supplier directly as Spend Authorized using Create Supplier UI.

In one of the posts on this forum, I read it is not possible. If that is the case, are any workarounds to achieve this?

If we register the supplier as a prospect and promote them to spend authorized, I know we can set the rules.