The correct way to share a coupon on social media is to copy and paste the link from the campaign overview. The URL will look like this URL:
Watch out - do not share the wrong URL
NEVER share a coupon URL like this:
https://digicpn.com/z/r6hv7e/5248a55d33jefgd46tf3t
It will not work because you are sharing a individual coupon session URL
This URL is a URL including the unique ID for one coupon user. Not the generic campaign URL.