Yes the meta description has to be different if your designs are different at product level. If it's different at creative level then you can play around with the image description mentioned different colours (example)

Yes, it should have a different description, categories and products both

Hi everyone, I'm currently working on my website's on-page seo. Starting with individual products and updating slug, meta title and meta description for products. (Via yoast on woocommerce)

Q- We have around 40 designs in one product category. Should the meta description of each 40 designs be different?

I read that meta title needs to be unique. Wanted clarification on meta description please.

https://www.facebook.com/groups/Pushstarter/permalink/3224216260972305/

Should Metadescriptions be different for all web  pages?