# Migration v24

Contains 1 breaking change of the SDK interface.

## Changes

- [fetchGatewayConfig no longer takes the authorizationAmount parameter](#fetchGatewayConfig-no-longer-takes-the-authorizationAmount-parameter)

### fetchGatewayConfig no longer takes the authorizationAmount parameter

fetchGatewayConfig doesn't need to have the `authorizationAmount` parameter anymore. The authorisation amount will now be determined by the payment gateway returned by the membership API. If the gateway is 'Checkout', the authorisation amount will be 0. Otherwise, it will be 1.