Changes to Push order

added the optional property issues to the response with the 400 status

added the optional property issues to the response with the 401 status

added the optional property issues to the response with the 503 status

the request property customerTotals became not nullable

the request property items/items/priceCents became not nullable

the request property items/items/sku became not nullable

the request property items/items/variantId became not nullable

the request property items/items/variantTitle became not nullable

the request property orderNumber became not nullable

the request property refundAmountCents became not nullable

added the optional property retryable to the response with the 400 status

added the optional property retryable to the response with the 401 status

added the optional property retryable to the response with the 503 status

added the optional property code to the response with the 400 status

added the optional property code to the response with the 401 status

added the optional property code to the response with the 503 status

the response property success became optional for the status 400

the response property success became optional for the status 401

the response property success became optional for the status 503

endpoint added