Edit contract

PATCH/api/v1/contracts/{contract_id}

Edit a contract's descriptive/schedule fields (number, first invoice date, estimated end date). Running tallies (billed/recognized/value) are maintained by the billing engine and cannot be edited.

Operation ID: update_contract_api_v1_contracts__contract_id__patch·View as markdown·OpenAPI slice

Authentication

Bearer token authentication. Pass your DayZero API token in the Authorization header and the target business UUID in x-business-id.

Parameters

Path

contract_idstringrequired

Request body

Schema: ContractUpdate

numberstring: Contract reference number.
first_invoice_datestring · date: Anchor date for the contract's term clock.
end_datestring · date: Estimated end of term.

Responses

200Successful Response

Schema: SuccessEnvelope_ContractResponse_

successboolean
messagestring
codestring
dataContractResponse

400Bad Request - Invalid input

401Unauthorized - Authentication required

403Forbidden - Insufficient permissions

404Not Found - Resource does not exist

422Validation Error

Schema: HTTPValidationError

detailarray · ValidationErrorValidationError

5 fields

locarray · string | integerrequired
msgstringrequired
typestringrequired
inputobject
ctxobject

Code samples

PATCH/api/v1/contracts/{contract_id}

bash

curl -X PATCH 'https://api.ondayzero.com/api/v1/contracts/{contract_id}' \
  -H 'Authorization: Bearer dz_your_token' \
  -H 'x-business-id: YOUR_BUSINESS_ID' \
  -H 'Content-Type: application/json' \
  -d '{
  "number": "string",
  "first_invoice_date": "2026-01-01",
  "end_date": "2026-01-01"
}'