If you run into an approvals related error, then please follow these steps to resolve:
Step 1 | Login into Acumatica
Step 2 | Navigate to Assignment and Approval Maps
Step 3 | Find the row with "Map Type = Approval Map" and "Entity Type = Cash Purchases"
Step 4 | Open this rule by clicking it
Step 5 | Create a rule that matches the one below with the Ramp card account(s) you use for your cash accounts