> This is the Markdown of a Backed Help Centre page, https://admin.backed.giving/help/news/2026/2026-11-07-write-api.md. Every page is listed at https://admin.backed.giving/help/llms.txt.

## What's new

- **Write scopes for API credentials.** Until now a credential could only read. Under
  `Settings > Profile and terms` on the `API Access` tab, `New Credential` and each row's
  `Edit scopes` now offer `Write registrations`, `Write applications`, `Write assessments`,
  `Write post-award records` and `Write files` alongside `Read`. Each row lists its scopes. Every
  existing credential keeps only `Read` until you change it. See
  [API access](/integrations/api-access#scopes).
- **Writes act as an Administrator you choose.** A credential with a write scope acts as one
  enabled Administrator, with their permissions and data access rules, and the row shows who.
  Choosing that person needs `Can edit permissions`. See
  [API access](/integrations/api-access#who-a-credential-acts-as).
- **Safe retries.** Every write carries an `Idempotency-Key`, so a request sent twice changes
  things once, and an update carries `If-Match` so it can't overwrite a newer change. See
  [API access](/integrations/api-access#idempotency-keys).
- **Route by route.** What each write route takes and refuses is in
  [Write API: registrations, applications, notes, tags and assignments](/integrations/api-c02-write-api-part-one-registrations-applications-no)
  and [Write API: milestones, payments, contracts and files](/integrations/api-c03-write-api-part-two-milestones-payments-contracts).