# Transaction pre-authorisation

Transaction pre-authorisation allows you to [capture](https://bump.sh/pgw/doc/imoje-api-en/operation/operation-post-parameter-transaction-parameter-capture) or [reject](https://bump.sh/pgw/doc/imoje-api-en/operation/operation-post-parameter-transaction-parameter-void) a paid transaction using dedicated requests to the relevant imoje API endpoints.

By default, pre-authorisation is disabled and all transactions are accepted automatically. If you want to enable pre-authorisation in your shop, please contact us at kontakt.tech@imoje.pl.

## How transaction pre-authorisation works

Once pre-authorisation is enabled, each paid transaction receives the status `authorised` (Awaiting confirmation) and a [notification](https://bump.sh/pgw/doc/imoje-api-en/topic/topic-notifications) with the same status is sent to the shop. In the next step, you can take one of the following actions:

- #### Capturing (approving) the transaction

    To approve the transaction, send a `POST` request to the endpoint [`/{merchantId}/transaction/{{transactionId}}/capture`](https://bump.sh/pgw/doc/imoje-api-en/operation/operation-post-parameter-transaction-parameter-capture). As a result, the transaction will receive the final status `settled` (Completed).

- #### Rejecting a transaction

    To reject a transaction, send a `POST` request to the endpoint [`/{merchantId}/transaction/{{transactionId}}/void`](https://bump.sh/pgw/doc/imoje-api-en/operation/operation-post-parameter-transaction-parameter-void). As a result, the transaction will receive the final status `cancelled`.