Start a Square Terminal checkout
AI agents: read /llms.txt; add .md to any page URL. This page as Markdown: /reference/payments/v2-sales-order-payment-square-terminal-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/
Sends a payment request for this order to a Square Terminal device; the customer pays on the device. Needs the Square (v2) connection.
Send a whole number of thousandths: 12500 is 12.50. See Money and quantities. The answer has the checkout from Square, with its id. {hash_id} is the order's id (for example V4keXwwxMQyXw7); the ord_ unique key is not accepted here.
Business rules
- The amount is checked first: The amount to charge, less any
surcharge, must be at least 1.00 in the order's currency: otherwise 422payment_below_minimum("Enter at least USD 1.00.", with the order's currency code), anderror.payment_amount_policygivescurrency,minimum_payment(a decimal pair,{ "value": "1000", "dp": 3 }) andminimum_remaining_balance(null). A negativesurchargeis 422payment_surcharge_invalid("The payment surcharge cannot be negative."). The provider's own limits still apply. - Then: only published orders (otherwise the error code "Action Not Allow", HTTP 500 today), and the team must have Square v2 connected (422
{"message": "Square v2 Not Setup"}).
Side effects
- Moves money Starts a checkout on the device through Square. Money moves when the customer pays.
Path parameters
Your team slug, shown as Team ID next to your API key in Profile.
- Example
your-team
- Example
The sales order's or quote's
id(a hash id). Theord_unique key and the order number do not work here.- Example
V4keXwwxMQyXw7
- Example
Request body
application/json, required.
Send a whole number of thousandths:
12500is 12.50. Must be at least 1.00 (1000) after anysurcharge.The Square Terminal device id.
surchargedecimal pairOptional card surcharge included in
amount, read only when the team charges one. It must not be negative; it is taken offamountfor the minimum check.{ "value": 1250, "dp": 2 }is 12.50:valueholds the digits,dpthe decimal places. See Money and quantities.
Response
200Successful response.
Square's Terminal checkout, with empty fields left out (also
note,device_options,deadline_duration,created_at,updated_at,app_id,location_id,payment_type).Child fields (4)
amount_moneyobjectidstringSquare's checkout id: use it to cancel.
reference_idstringThe order number, for example SO1001.
statusstring | nullSquare's checkout status, such as
PENDING.
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.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.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
- Square v2 is not connected:
{"message": "Square v2 Not Setup"}, with no envelope. - Fix
- Connect Square in Settings.
- When
- Square refused:
payment_capture_failed, with Square's errors inerror.data. - Fix
- Check the device id.
- When
amountis missing or not a whole number (validation_failed), less than 1.00 after the surcharge (payment_below_minimum), or the surcharge is negative (payment_surcharge_invalid).- Fix
- Send at least 1.00 (
1000) in thousandths.
500A business rule refused the request (see the operation's errors), or something failed inside YoPrint. Refusals use the error envelope with a code such as
action_not_allowed; an unexpected failure answers{"message": "Server Error"}. Repeating a refusal gets the same answer; after an unexpected failure, read the record back before you retry a change.- When
- A draft order:
error.code"Action Not Allow". - Fix
- Publish the order first.
Related
- PATCHCancel a Square Terminal checkout
/v2/ api/ store/ {team_slug}/ v2/ sales_order/ {hash_id}/ square_terminal/ {checkout_id}/ cancel
