The U.S. Department of State (DOS) revises the Visa Bulletin each month, and USCIS's page on visa availability and priority dates says a visa is available when an applicant's priority date is earlier than the cutoff date shown for the preference category and country of chargeability. USCIS then designates which of the two charts, Final Action Dates or Dates for Filing, adjustment applicants use that month.
Docketwise's priority date article asks for a priority date and a preference category on the matter. It updates the cutoff dates just before each month begins and shows two results for the matter: status for filing and status for final action. Staff get in-app notifications, and a monthly email digest lists the matters that became current and the matters that retrogressed. A Matters by Preference Category report, described in a Docketwise post on Visa Bulletin tracking, groups the cases whose priority dates are current.
LollyLaw's priority date tracking announcement describes a tracker for each matter that takes the application type, the filing method (adjustment or consular), the preference classification, the country of chargeability, and the priority date. LollyLaw syncs those dates with the Visa Bulletin charts and alerts staff to changes. Its built-in reports include Eligible to File, Retrogression Report, and Upcoming Eligibility.
CampLegal says it notifies the firm automatically once a client's priority date is current in the Visa Bulletin, so staff can start on the remaining steps. On eimmigration, the same premium tracker that sends status notices carries the Visa Bulletin monitoring.