Offer additional costs

Free cost lines on an offer, for a surcharge or, with a negative price, a discount. Changeable while the offer is a draft.

📄️List the cost lines of an offer

Returns all cost lines of an offer. Requires the `read:offers` scope.

📄️Add a cost line to an offer

Adds a cost line to a draft offer. The offer's total price is updated. Requires the `write:offers` scope.

📄️Change a cost line on an offer

Replaces a cost line of a draft offer with what you send; fields you leave out go back to their default. Requires the `write:offers` scope.

📄️Remove a cost line from an offer

Removes a cost line from a draft offer. Requires the `write:offers` scope.