# UpdateTransactionAmountInput

Input · GraphQL API

Top-level input fields for a updating a transaction's amount.

## Fields

- `clientMutationId` (`String`): An identifier used to reconcile requests and responses. 255 characters maximum.
- `transactionId` (`ID!`) — required: ID of the transaction on which to perform the adjustment.
- `amount` (`Amount!`) — required: The new total amount to be authorized on a transaction. This value must be greater than 0, and must match the currency format of the merchant account, and cannot be greater than the maximum allowed by the processor.

## Used by

- [updateTransactionAmount](/braintree/graphql/reference/mutations/update-transaction-amount) — Mutation; input

## GraphQL definition

```graphql
input UpdateTransactionAmountInput {
  clientMutationId: String
  transactionId: ID!
  amount: Amount!
}
```

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[View the complete GraphQL schema on GitHub](https://raw.githubusercontent.com/braintree/graphql-api/refs/heads/master/schema.graphql)