The sharable link is a quick way to invite your Buyers to your marketplace. This option is best suited for marketplaces that don't require their Buyers to be approved before shopping for deals.
Clickpath: Buyers > Add Buyers > Get Sharable Link
Before You Share:
This link does not expire.
Anyone with the link can automatically join your marketplace. This includes users with domains that you have not whitelisted or manually issued invitations to.