Reminder from Shopify: Migrate your app extensions
During September, your app(s) will be automatically migrated to Shopify’s new Developer Platform. After migration, you need to deploy your app so that the CLI will assign a new ID to each extension. This only happens on the first deploy. After that, future versions will deploy as usual.
What to do next
- Read Shopify's migration guide;
- Pay particular attention to how extension IDs (UIDs) are assigned;
- Post questions in the Dev Platform category in the Shopify Dev Community.