I am running a discount this week for 15% off using code FALL15, but when I go to check out it says "Unable to find discount that matches code".
When i created the discount it says it is Active.
You may want to check the following
1. Spelling of the code
2. Did you setup all conditions for the code correctly including validity start etc.
3. Are you using an app for a subscription? That may interfere with default discounting
Thank you so much!! It had to do with the app Thank you!!