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POST
Create One Customer
Not retry-safe. Re-POSTing an existing (sourceSystem, sourceSystemId) pair returns 400 Uniqueness violation — create once, then update with PUT. See Idempotency & retries.

Authorizations

Authorization
string
header
required

Your API key, sent in the Authorization header: Authorization: YOUR_API_KEY. A Bearer prefix is also accepted (Authorization: Bearer YOUR_API_KEY). Keys are created in the Upwell dashboard (Account → API keys) and are scoped to one organization.

Body

application/json

Query parameters can also be provided in the request body as a JSON object

input
CustomersInsertInput · object

input type for inserting data into table "customers"

Response

Responses for POST /api/rest/customers

createCustomer
Customers · object | null

columns and relationships of "customers"