You can choose to participate in public campaigns every 7 days with any of your Social Networks. This means that your Social Network will be 'locked' from the moment you hit 'participate', regardless of whether you cancel or your participation is ended.
In the event that your proposal is not approved after 7 days, you can continue waiting for approval, while agreeing to participate in another public campaign.
If you receive invitations to participate in campaigns, you will be able to participate without waiting the 7 days since this only applies to public campaigns. Click here for more information.