PAAPINVW - Project Supplier Invoice Account workflow doesnt appear to fire

Hi

When I enter an invoice with a project and task combination I would expect the Project Supplier Invoice Account Workflow to start but when I click on the distribution button on the invoice line form nothing happens, no invoice distribution window is launched and no error message is displayed.

I have customized the PAAPINVW workflow and have uploaded back to the test system. I have also amended the values in the item type “Project Supplier Invoice Account Generation” on the Account Generator Procesess screen to point to the correct workflow process and bounced apache.

I have checked the wf_items table and there is no record of the workflow ....