Payment Plugin: Woocommerce

Please use the next URL for webhook in Woocommerce: https://example.com/amember/payment/woocommerce/ipn

Here is how you can add webhooks in Woocommerce: https://woocommerce.com/document/webhooks/

Set "Woocommerce Item SKU" within product settings: aMember CP -> Products -> Manage products -> (edit)