How to check why TikTok Shop livestream coupons are invalid, including event times and inventory conditions

When distributing coupons during a livestream, the worst scenario is the host announcing they are available, but customers finding them unusable when they click. We recently encountered a wave of complaints where the coupons appeared active in the backend, but users couldn't apply them at checkout. To troubleshoot, I first check the coupon's start/end time, ensuring the backend time zone matches…