Notifications are not working in the workflow

Notifications are not working in the workflow in the task

You need to give more info, what you trying to achieve and what you have done so far

I have the same issue at all, I have created one button on dash board of CRM with Assign_to with the email id and Next_Contact_date greater than given date". but no Lead prompt for assign_to Dashboard.
Can you guide please?

regards,

System notifications do not appear when doing a task, they appear only to the creator of the task, although I have selected multiple users who receive notifications