Business Central Sales Lines and Price Groups

[CulebraPartners]

Hi there,

My customer would like to build a Business Central workflow for sales order lines.

1. Order processor requests approval on sales order

2. Sales order lines are sent to Power Automate

3. Line items are compared to a "Floor" price group

4. IF line item sales price < "Floor" price  THEN reject ELSE approve

Any ideas here? I have so much difficulty with pulling data from BC to the flow process. I tried creating a data table on the Dataverse and can populate it there for sales price groups, but then I can't bring it onto the approval workflow template. Also, when getting data from BC in Power Automate, it asks for ROW ID. I'd like to get the sales order lines by passing through the Order Number from the request approval template. 

Any help would be great. Thank you,

Jordan