SupportCenter Plus allows you to import contacts in bulk from a CSV file.
To import contacts:
1. Click the Contacts tab.
2. Select Import from CSV by clicking the drop-down arrow beside the New button.
3. In the import wizard that appears, click Choose File, select the CSV file and then click Submit.
4. Now, map the contact fields with the respective column names in the CSV file and click Import.
Bulk import of contacts is available only under Contacts module.
To do scheduled imports, head here