Question post - access to users ads on facebook marketplace.

Hi friends,
Maybe someone can help me,
I'm building a sales service (kind of dropshipping) on the facebook marketplace,
ie. selling for others their furniture.
I'm looking for some way to access the users ads on the facebook marketplace (I want to control the ads details and advertising - when the ad is from their profile, not mine).
I'm thinking that a possible option is on Facebook API but I'm not really sure (I don't have experience with coding),
If there is someone that knows more about this subject and can contact me please - it will help me a lot,
thanks!