From the Solidus home page, do the following:
Go to the Admin Panel, to do this, enter /admin at the end of the home page URL. You are redirected to the Admin Login page.
Enter your login credentials and click Login.
Click Settings on the left side menu, a sub-menu appears.
Click Payments, a list of available payment methods appears.
Complete the following fields:
Type - Select Afterpay
Name - This can be anything you want, it’s an internal name for the payment method. “Afterpay” is a good choice.
Description - An optional field, enter what you want here.
Preference Source - Leave this field as custom.
Auto Capture - This is an automatic payment capture feature. Leave it on the default setting that is Use App Default (No).
Available to Users - Enable this checkbox to make Afterpay available to customers when the configuration is complete. But see step 8 below.
Available to Admins - Enable this checkbox to make Afterpay available to Solidus administrators when the configuration is complete. But see step 8 below.
Active - Enable this checkbox to make Afterpay available for use when the configuration is complete. You can set the type of customer in steps 6 and 7 above.
Stores - Enter the name or names of the store or stores where Afterpay will be offered. This is an optional field.
Click Create. The final set of fields appear, see the section below for instructions.
Complete the following final fields:
Merchant - Enter your Afterpay Merchant ID.
Secret Key - Enter your Afterpay secret key.
Deferred - Enable this checkbox to offer Afterpay as a deferred payment.
Popup window - Enable this checkbox to display Afterpay in a popup window. If you do not enable the checkbox, your customers are redirected to the Afterpay website.
Merchant Key - Enter your Afterpay merchant key.
Auto Capture (No) - This is an automatic payment capture feature. The default setting is No.
Click Update. Afterpay is now configured to work with Solidus.