How to run AP reports in a custom general accountant job role?

I have created a custom General Accountant Job role. One of the requirements from the client is to run AP reports in this custom General Accountant Job Role Role. I have tried adding the payable invoice processing duty role to my custom general accountant job role, this duty roles contains AP reports, however this has proven to be unsuccessful. What steps can I take to successfully run AP reports in my custom General Accountant Job Role?