Prior to running the mass update, we need to create a query that groups the accounts. For example, if you'd like to add a contact to all of the User's accounts, you would use the Base/All Users query. Once you have this query, you can use the steps listed below to run the mass update:
  1. Click Management
  2. Click Mass Update
  3. Click Create New Contacts
  4. Select the query that you created from the Category and Query drop down menu
  5. Fill in the Date, Contact Method, Subject, and any relevant Notes or User Defined Fields
  6. Click Next
  7. Preview the list of accounts that will be updated
  8. Click Next to run the mass update