API ReferenceProduct Variants
Create a booking hold
Temporarily reserve a booking slot before checkout.
Create a temporary hold for a booking slot before checkout. Send the hold ID with the checkout item so SellApp can confirm the reserved appointment after payment.
AuthorizationBearer <token>
Provide your SellApp API key as a bearer token.
In: header
Path Parameters
product*integer
The product path parameter.
variant*integer
The variant path parameter.
Header Parameters
X-STORE?string
Store slug. Required for OAuth access tokens. API keys may omit it to use their current store, or the first accessible store when no current store is selected.
Request Body
application/json
TypeScript Definitions
Use the request body type in TypeScript.
Response Body
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
curl -X POST "https://sell.app/api/v2/products/0/variants/0/booking/holds" \ -H "X-STORE: launch-lab" \ -H "Content-Type: application/json" \ -d '{ "slot_start_at": "2026-06-22T14:00:00+00:00", "quantity": 1, "customer_key": "visitor-session-123", "meta": { "customer_timezone": "America/New_York" } }'{
"data": {
"id": "018f61d6-1c46-7b42-8a94-522bc6b5c53f",
"slot_start_at": "2026-06-22T14:00:00+00:00",
"slot_end_at": "2026-06-22T14:30:00+00:00",
"quantity": 1,
"expires_at": "2026-06-22T13:45:00+00:00"
}
}{
"type": "invalid_request_error",
"code": "bad_request",
"message": "The request could not be understood.",
"status": 400,
"param": null,
"request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
"docs_url": "https://sell.app/docs/api/errors#bad-request"
}{
"type": "authentication_error",
"code": "unauthenticated",
"message": "Unauthenticated.",
"status": 401,
"param": null,
"request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
"docs_url": "https://sell.app/docs/api/errors#unauthenticated"
}{
"type": "authorization_error",
"code": "forbidden",
"message": "This action is unauthorized.",
"status": 403,
"param": null,
"request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
"docs_url": "https://sell.app/docs/api/errors#forbidden"
}{
"type": "not_found_error",
"code": "resource_not_found",
"message": "Not Found.",
"status": 404,
"param": null,
"request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
"docs_url": "https://sell.app/docs/api/errors#resource-not-found"
}{
"type": "validation_error",
"code": "validation_failed",
"message": "The selected product variant id is invalid.",
"status": 422,
"param": "product_variant_id",
"request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
"docs_url": "https://sell.app/docs/api/errors#validation-failed",
"errors": {
"product_variant_id": [
"The selected product variant id is invalid."
]
}
}{
"type": "rate_limit_error",
"code": "rate_limit_exceeded",
"message": "Too Many Attempts.",
"status": 429,
"param": null,
"request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
"docs_url": "https://sell.app/docs/api/errors#rate-limit-exceeded"
}{
"type": "api_error",
"code": "api_error",
"message": "Server Error",
"status": 500,
"param": null,
"request_id": "01992a65-e064-71ba-b38f-902b7966a6be",
"docs_url": "https://sell.app/docs/api/errors#api-error"
}