Is FileMaker Cloud for AWS or FileMaker Cloud 2.x Supported?
There are no issues when using a FileMaker Cloud for AWS hosted version of fmEcommerce Link (Shopify Edition) v2 when using the FileMaker Pro, FileMaker Go or FileMaker WebDirect client. If you are using FileMaker Cloud for AWS you can also use the Data API versions of the Webhooks files - FileMaker Cloud for AWS does not support Custom Web Publishing so you cannot use the PHP API webhook files.
The only unsupported feature for FileMaker Cloud 2.x is the use of Webhooks. The Data API Webhooks currently don't work with FileMaker Cloud 2.x deployments due to the differences in how authentication is handled for FileMaker Cloud 2.x users with the Data API. We hope to have a version of the Webhooks that support FileMaker Cloud 2.x soon.