Status: IN
There is no separate `TransactWriteItems` or `TransactGetItems` IAM action — transactions are controlled via underlying item-level actions (`PutItem`, `UpdateItem`, `DeleteItem`, `GetItem`) plus the `dynamodb:EnclosingOperation` condition key.
Source: entries/2026/03/11/amazondynamodb-latest-developerguide-transaction-apis-iamhtml.md