How to attach an invoice to a submitted Bill

Steps:

1. Go to Accounts Payable → Manage Bills 

2. Find the Bill you intend to update from the Pending tab and open it.

3. Select the red Fix Bill button located in the lower right part of the page.

4. Provide the reason why you're fixing the Bill and select Fix Bill.

5. The Bills should now be back in the draft section.

6. Click the Upload button to locate and select the file you wanted to attach to this Bill.