All delivery charges must be automatically added to any Delivery work order, and the price...

Create a Delivery Charge Product Record. Set Field Service Product Type to Service.

Create a business rule to set the Delivery Charge work order product record line status to Used, and ensure Unit Amount is 75.00 Make Quantity and Amount fields read only

Add the Delivery Charge product to the delivery incident type. Set Quantity to 1

Create a Delivery Charge Product Record. Set Field Service Product Type to Non-Inventory.

Create a business rule to set the Delivery Charge work order service line status to Used, set Duration to 1 hour and Amount to $75.00. Make Duration and Sale Amount details read only with the business rule.