automating data feed from website to social media accounts

I already have an automated data feed between my supplier and my wordpress ecommerce website. I now want to establish a data feed to my social media accounts so that new products are automatically posted to these accounts on a daily basis. I dont know if this needs to be set up through my website, or if inidividual data feeds need to be set up from my supplier to each social media account separately. My current social media accounts are twitter, instagram, facebook, pinterest, google+ and tumblr. Are you able to help?