You can keep track of which campaigns your coupon pools are being used in from the Campaign usage tab.
Go to: Campaigns > Coupon pools and find the pool you're interested in, then click View:
Select the Campaign usage tab:
You can see the campaigns this coupon pool is currently being used in, as well as what kind of campaign it is.
- Automation - any active automation campaigns where this pool is currently being used.
- Broadcast - any scheduled broadcast campaigns this pool will be used in. Past broadcast sends are not represented here.
Click the campaign name to go directly to the campaign builder and make any changes.