Thanks but no - she is talking about dropshipping. In my case I manufacture and sell physical products myself and they all are available at all times.
The issue in my case probably stems from domain verification issues - I see the domain as verified in my Business Manager, but was told by FB staff that on their end they do NOT see my domain as even added… but since discovering that 2 weeks passed and they still did not do anything to fix it. Gah.