eCampaigns allow you to create targeted marketing campaigns to create new opportunities using your existing client base. For you to be able to set up eCampaigns, you must first set up eCampaign Types. These are categories which your eCampaigns exist under.
You must be within the Advanced band or higher to use Email Marketing as this is a chargeable module/integration. Please speak to your CSM if you are unsure whether you should have access to this feature.
You will also need to create a SendGrid account in order to send bulk emails. To learn how to do this, click here.