Jeffrey Campbell review for Facebook & Instagram

Recently converted from the Facebook Store app to this one & I have been trying to add our existing instagram account to the Business Manager, but it's a dead link. The button choices are "ADD" or "CANCEL" & only cancel works. I've clicked on the IG page & every area in the box to see if that was the problem, but still nothing so all our new products are unable to be tagged on our instagram page. I suggest not to convert unless absolutely necessary. If support can email me, that would be greatly appreciated.