Missing or invalid availability value

Snapchat needs a stock status for every product. Missing availability or an unrecognized value like 'available' instead of 'in stock' removes the product from distribution.

The availability column was unmapped, the source platform exposes inventory as numeric quantity, or a custom value ('available', 'sold out', 'limited') was submitted instead of Snapchat's accepted enum: in stock, out of stock, preorder.

1. Map availability to one of the accepted values: in stock, out of stock, preorder.
2. Translate numeric quantities: stock > 0 to 'in stock', stock = 0 to 'out of stock'.
3. Refresh availability at least daily - sold-out items should not stay live.
4. If you preorder, surface that explicitly so the badge can render correctly.
5. Re-upload and confirm the products return to distribution.

• Sending 'true/false' booleans instead of the enum strings
• Letting weekly export cycles outpace actual stock changes