Plaid updates OAuth error responses for form and JSON requests

Plaid’s Sandbox transaction tool now works on every Sandbox Item and can create transactions up to 730 days in the past, up from 14 days. You can also pass an optional account_id to associate a transaction with a specific account.

Link adds Haitian Creole (ht), and the Returning User Experience is enabled for the UK.

For OAuth integrations, /oauth/* errors now follow the OAuth specification for application/x-www-form-urlencoded requests and the Plaid API format for application/json requests. Plaid Check also adds /cra/report/create and /cra/report/get; the older /check_report/ endpoints remain supported.