Can I connect more than one Campaign Monitor account to Salesforce?
You can only connect one Campaign Monitor account to one Salesforce org. Most Campaign Monitor accounts are direct, but Campaign Monitor also supports an agency account-model, which allows you to create sub-clients within the same Campaign Monitor account.
An agency account can then be connected to Salesforce via the general settings tabor when you first connect. You can then choose to sync one or more sub-clients contained within that parent (agency) account.
If you are interested in this approach and don't have an agency account, it is worth reading the support article . You will need to contact Campaign Monitorshould you have any questions or want to make the change.