Which of the following is a recommended way to add multiple contacts quickly in Xero?

Utilizing an import template is a recommended way to add multiple contacts quickly in Xero because it allows users to upload a batch of contact information all at once, significantly saving time and reducing the potential for errors compared to manual entry. This method involves populating a pre-defined template with the necessary contact details, such as names, addresses, and other relevant information, and importing it directly into Xero. This is especially useful for businesses that have a large number of contacts to add, as it streamlines the process and enhances efficiency.

The other options are less efficient. Manual entry for each contact is time-consuming and may lead to inconsistencies or mistakes, while contacting support for assistance implies that the individual may not have the necessary tools or knowledge to complete the task independently. Entering details through the mobile app might also limit the user in terms of convenience and bulk action, as it typically allows for individual contact entry rather than batch uploading. Thus, using an import template is the best practice when dealing with multiple contacts.