Changing the status of a Coupon

Log in to Opencart

Go to "Marketing -> Coupons"

Use the search fields to find the coupon you are looking for

Once found, toggle the button in the "Status" column to enable/disable the coupon

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Alternatively (slower method):

click the "Action" button
Scroll down to the bottom of the page
Change the status in the "Status" dropdown
Click "Save" at the top of the page