Add a line to a shipment
AI agents: read /llms.txt; add .md to any page URL. This page as Markdown: /reference/shipment-line-items/v2-shipment-item-create.md. Index of every page and the rules for every call: /llms.txt. Guides and concepts in one file: /llms-full.txt. OpenAPI: /openapi.json.
POST/
Adds one line to a shipment and recalculates it. Returns the line in an action envelope (action_performed CREATED, has_changes, lock_version, item).
product.type |
What it is |
|---|---|
order_item |
Ships a quantity of a line of the same order (any kind of product line, or a fee). |
shipment_cost |
A shipping cost line (Shipping Cost in the web app), with its own price, optionally tied to a package or an estimate. |
Numbers are { value, dp } pairs: value is the number without its decimal point and dp the count of decimal places, so 12.50 is { "value": 1250, "dp": 2 } (or { "value": 125, "dp": 1 }). value is a JSON integer or a digit string, never a float: 12.5 is refused. Quantities take up to 8 decimal places; shipping costs and a pricing mode's rate take 6. More significant decimals than that are a 422, not rounded. Send very large numbers as strings. Answers send prices at the stored scale (6 decimal places), quantities without trailing zeros, and _meta.subtotal (price × quantity) at the combined scale, compacted when it would exceed a safe integer: always read dp.
Nothing caps the quantity at what was ordered: shipping more marks the order line over-allocated.
Business rules
product.typeisorder_itemorshipment_costonly; the order line kinds (db_catalogand so on) are refused with "The selected product.type is invalid."- An order line can be on a shipment once: 422
cart_item_validation_error"Shipment already has the same Order Item". - The order line must be on the shipment's order and shippable; otherwise 422 with a bare
{ "message": "order_item: ..." }. - A shipping cost line's package or estimate must belong to this shipment. A second cost line for the same package returns the first with
action_performedNONE. - A Shopify shipment that is locked (managed by Shopify or already fulfilled there) or has a broken Shopify link takes no new lines: 422
validation_error"Cannot create Shopify-synced shipment item from API." An externally synced shipment on a draft order: "Publish this order before creating an externally synced shipment item." - Fields that aren't listed are dropped, and a
nullcounts as not sent (exceptshipment_package_idandshipment_estimate_id).
Side effects
- Recalculates the shipment's cost and billable fee totals and the order's shipping totals.
- Updates each order line's shipped status (not allocated, partly, fully or over-allocated).
- On an Auto Invoice order, shipping cost lines are mirrored as shipping fees on the managed invoice.
- Open Admin Portal pages refresh, and so do Customer Portal pages the order's customer has open. No webhook or email is sent.
Path parameters
Your team slug, shown as Team ID next to your API key in Profile.
- Example
your-team
- Example
The shipment's
id(a hash id), as its answers show it. Its unique key (shp_...) also works, but API answers don't include it.- Example
MQyJUnd3oty75h
- Example
Request body
application/json, required.
What are you adding?
Send one of these 2 bodies.
Order line
Ships a quantity of a line of the same order.
Child fields (2)
- Always
"order_item"
- Always
Child fields (1)
The order line's
id(a hash id). It must be on the shipment's order, shippable, and not already on this shipment.
How many to ship. Not negative; may be more than ordered (the line then shows as over-allocated).
Child fields (2)
- Always
"unit"
- Always
The quantity, up to 8 decimal places.
{ "value": 1250, "dp": 2 }is 12.50:valueholds the digits,dpthe decimal places. See Money and quantities.
Where the line sits on the shipment; lower comes first.
pricingobjectOptional; the price always comes from the order line.
Child fields (1)
typestring- Always
"system"
- Always
Example request
curl -X POST 'https://secure.yoprint.com/v2/api/store/your-team/v2/shipment/MQyJUnd3oty75h/item' \ -H 'Authorization: Bearer YOUR_API_KEY' \ -H 'Accept: application/json' \ -H 'X-Yoprint-Decimal-Format: exact-v1' \ -H 'Content-Type: application/json' \ -d '{ "position": 100, "product": { "properties": { "id": "ZJTJ2uF5dMiArL" }, "type": "order_item" }, "quantity": { "total": { "dp": 0, "value": 24 }, "type": "unit" } }'Shipping cost
A shipping cost line with its own cost.
Child fields (2)
- Always
"shipment_cost"
- Always
Child fields (2)
Send
none: the price billed is the cost. See the notes for the other values.- One of:
"none","override","markup","margin"
- One of:
totaldecimal pairThe cost, up to 6 decimal places. Missing means 0.
{ "value": 1250, "dp": 2 }is 12.50:valueholds the digits,dpthe decimal places. See Money and quantities.
Child fields (2)
- Always
"shipment_cost"
- Always
Child fields (4)
descriptionstringshipment_estimate_idstring | nullA shipping estimate of this shipment the cost comes from.
shipment_package_idstring | nullA package of this shipment the cost is for. One live cost line per package: a second create returns the existing line.
quantityobjectOptional and not used in the totals.
Example request
curl -X POST 'https://secure.yoprint.com/v2/api/store/your-team/v2/shipment/MQyJUnd3oty75h/item' \ -H 'Authorization: Bearer YOUR_API_KEY' \ -H 'Accept: application/json' \ -H 'X-Yoprint-Decimal-Format: exact-v1' \ -H 'Content-Type: application/json' \ -d '{ "position": 900, "pricing": { "product_cost": { "pricing_mode": "none", "total": { "dp": 2, "value": 1240 } }, "type": "shipment_cost" }, "product": { "properties": { "name": "USPS Ground Advantage", "shipment_package_id": "o6foWpSAayc79D" }, "type": "shipment_cost" } }'Response
200Successful response.
What happened, and the line.
Child fields (5)
object_typestring- Always
"shipment_item"
- Always
action_performedstringNONEwhen nothing changed.- One of:
"CREATED","UPDATED","DELETED","NONE"
- One of:
has_changesbooleanitemobjectA shipment line.
Child fields (16)
_metaobjectRead-only details of the line.
auto_invoice_managedbooleanbillable_fee_totaldecimal pairShipping cost lines only: what is billed (after override, markup or margin);
pricing.product_cost.totalis the cost. A decimal pair: the amount isvalue÷ 10^dp({ "value": 1250, "dp": 2 }is 12.50). Readdpevery time: it can differ between fields and records.- See Money and quantities.
external_idsarray of objectsLinks to external systems; usually empty.
external_typestring | nullfrom_legacybooleanidstringThe shipment line.
is_externalbooleanlock_versionintegerReturned but not checked on shipment lines.
positionintegerpricingobjectFor
system,_meta.unit_priceis the order line's unit price and_meta.subtotalis that price × this shipment line's quantity (_meta.totalis always 0); forshipment_cost,product_costhasoverride(always true for lines saved through the API),total(the cost),pricing_modeandpricing_mode_total(decimal pairs at 6 decimal places).Child fields (1)
typestring- One of:
"system","shipment_cost"
- One of:
productobjectChild fields (3)
_metaobjectRead-only details; for
order_item,parentdescribes the order line.propertiesobjectFor
order_item,idis the order line; forshipment_cost,name,description,shipment_package_id,shipment_estimate_id.typestring- One of:
"order_item","shipment_cost"
- One of:
quantityobjectChild fields (2)
typestring- Always
"unit"
- Always
totaldecimal pairThe quantity. A decimal pair: the amount is
value÷ 10^dp({ "value": 1250, "dp": 2 }is 12.50). Readdpevery time: it can differ between fields and records.- See Money and quantities.
shipment_idstringThe shipment.
typestringSame as
product.type.weightobjectThe order line's weight (
_meta.total,_meta.unit).
lock_versionobjectLock versions after the change.
Errors
401The API key is missing or wrong (
unauthenticated).403You are not allowed to do this.
api_access_not_in_plan: your team's plan doesn't include API access (Pro and above, with an active subscription or trial), so every request answers this until the team upgrades. When your role lacks the permission the operation needs, the body is only{"message": "Insufficient Permission"}. Other refusals use the error envelope, withunauthorizedoruser_is_not_authorized.- When
- Your role can't edit this order.
- Fix
- Ask the team owner to adjust your role or assign you to the order.
404Not found.
page_not_found: the team slug is unknown, you are not a member of the team, or an id in the path is not one of this team's.code: null, with a message that starts "No query results for": there is no record with that id.- When
- The shipment isn't your team's.
- Fix
- Check the id.
422The request was refused and changed nothing.
validation_failedlists what to fix inerror.fields; other codes name a business rule, explained inerror.message. A few checks answer with only{"message": "..."}. An operation that calls another service (a payment provider, a carrier, an accounting app) can answerconnect_timeout("Please retry again") when that service does not answer in time: the change may or may not have happened there, so read the record back before you retry.- When
- Validation (
validation_failed) or a business rule (cart_item_validation_error, or a baremessage). - Fix
- Read the message and fix the line.
Notes
- A shipping cost line's
pricing_modeoverride,markupandmarginare accepted, but the API can't pass their rate:overridebills 0 and the others bill the cost. Usenoneand set the cost you want to bill.
Related
- GETList the lines of a shipment
/v2/ api/ store/ {team_slug}/ v2/ shipment/ {unique_key}/ item - POSTAdd, change and remove shipment lines at once
/v2/ api/ store/ {team_slug}/ v2/ shipment/ {unique_key}/ item/ bulk - GETList the packages of a shipment
/v2/ api/ store/ {team_slug}/ v2/ shipment/ {hash_id}/ packages
