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