Problem
The Product category dropdown is empty.
Possible cause
Categories are loaded from the system when the page opens. If the list is empty, it is likely that no product categories have been created yet. It may also be caused by a temporary loading issue.
Solution
Reload the page and check whether the categories now load.
Go to Product categories and create at least one category if none have been created yet.
Check your internet connection if the problem persists.
If the problem persists, contact support and include details about:
Whether any categories have already been created in the system.
When the issue occurred.