Make Important Fields Mandatory
Imagine if the important (or vital) fields were mandatory and the sales rep couldn't save the lead without inputting specific information. That way the sales reps don't forget to input vital information like the email address or the lead source or the campaign name or something super important.
Happy to say that Required Fields are now available in Zendesk Sell on all plans. Admin can configure them in Settings > Field Rules for creating a lead, deal, contact and for moving deals through the pipeline.
More details in this support article: