1. Navigate to Projects and select a job
2. Scroll down and click on Receivables
3. Click on on +
4. Update the Receivable name (not required) and select and invoice date
5. Click on Add Line
6. Select a product if refunding to a specific item, type in a Label, enter Quantity and type in a -negative Price Per Unit. Click outside of the Invoice Line to save
7. Click on Save
