external_price_urlfield with your external service endpoint and make sure your service supports the specification described below.
trueif you want the line item price to be provided by your external service, instead of Commerce Layer:
POSTrequest to the specified
external_price_urlendpoint, sending the line item payload (including the order) in the request body.
line_itemsin the specific case — some relationships are also included to avoid useless API roundtrips:
400. The response body must be a JSON object containing any other relevant error code and message: