Category headers are sticky labels that pin to the top of a category as buyers scroll. Use them inside breaks categories to advertise the contents of the break (e.g., "1 box of Bowman Chrome, 1 box of Topps Chrome, 1 box of Bowman Draft") without repeating it on every team.
How to add one.
1. Enter your stream and tap the shop icon.
2. Tap the + icon on the bottom-right.
3. Toggle the Category Title slider on.
4. Add the header text and the category it should pin to. Save.
Why it doesn't appear yet. A category header only renders once there's at least one regular item in the same category. If you add the header first, then the items, the header will appear as soon as the first item is saved.