Answer by MikelThief for Delete all the Hangfire jobs

To delete recurring job (what i think you meant) you should firstly ask your storage to provide you all recurring jobs you have set:

jobStorage.GetConnection().GetRecurringJobs(); // where jobStorage is your storage instance, you can access it via JobStorage.Current in static context.

then delete a desired entry:

recurringJobManager.RemoveIfExists("someId"); // where recurringJobManager is instance of IRecurringJobManager

then PurgeJobs3() should work as expected (as it uses IRecurringJobManager under the hood). Perhaps the job identifier does not match your target?