Shopify is an multinational Canadian e-commerce company that permits anyone to line up their online store for selling products.
As per the question asked, suppose if someone wants to deactivate Cash on delivery payment, a kind of manual payment gateway for international customers it can be done as follows
In your shopify admin attend Settings > Payment provider
In the Manual payment methods box up the Payment providers area, click Edit next to the manual payment method that you simply want to deactivate.
Click the deactivate payment method button.
Click the deactivate payment method button again to verify .
After you deactivate a payment method, you'll reactivate it at any time from the Manual payment methods menu within the Manual payments section.
