Note. We've used St George screenshots but Westpac is the same.

1 - Click on the cog in the corner - there will be Merchants and REST API Keys on the settings page.

2 - The Merchant Account Details screen will look like this - please copy and paste the Merchant ID. 

NB: The Merchant ID is different to the client ID which usually starts with a letter (eg Q123456). The Merchant ID is ALL numbers.

3 - If you click through to the REST API Keys - you'll need to copy and paste both the Publishable and Secret Keys.

Now go to EnrolHQ and log-in to your dashboard. Go to Settings > Payment Settings

Then select Westpac Payway from the dropdown and copy and paste the Merchant ID and the Publishable and Secret API keys from Payway and scroll all the way to the bottom and save.