Yup, manually checking every listing was definitely time consuming (it took more than 2 days), BUT it has been worth it as it also gave me a chance to make a few minor changes in the descriptions.

I originally started off in bulk edit, but to be honest, it's only when you open a listing that you can really and truly see what information is missing/incomplete - Ebay has put red asterisks next to the information that HAS to be completed. Any other info you can fill in is also good and will bulk out those specifics.

I've attached a screenshot of what the requirements are for a typical cushion cover.

Ebay needed 2 definite pieces of information, the rest I was able to supply as additional specifics. As you can see, the "Recommended"
section was also important, and that blue circle with the lightning only filled up bit by bit as I completed those item requirements.

1800 listings is a huge task for sure. Break it down into chunks - maybe 200 a day.

Also, double check that everything is in the right category - Ebay moved more than 200 of my cushion cover listings into "Childrens Decor".

---------