The online order of merchant using Postmate has fields as shown in below image:
In order to know how much money merchant actually receives, we need to accumulate Subtotal, Sales Tax, Delivery, Courier Tip, Service Charge and then subtract Fees (Square + Delivery Related Fees). We can obtain all above info except the “Delivery Related Fees”. It is strongly significant to our own report system. Please let us know how to get such fee.