Credomatic
The Dashboard has a Credomatic store form for projects that return the method. Check the provider account and store before changing it.
Confirm the setup that applies to your project
Check Stores → select a store → Payment methods for the method, and Settings → Apps & developers for any installed provider category. When the store returns Credomatic, review its own credential fields and keep test and live values in their matching groups. Confirm any plugin-wide settings separately.
Use provider test tools to verify a supported setup. See the Payment plugin catalog for how the Dashboard distinguishes installable methods, installed methods, and older provider guides.