SharePoint Alert Reminder Boost resolves this problem by setting user/group field columns as sending targets. As a result, in addition to sending emails to specific existing SharePoint users/groups, the workflows can also send emails to user/group field columns, including "Created By", "Modified By" etc. inner columns and other users/groups columns like, "Manager". Furthermore, sending targets can be email addresses,email columns, and AD users or groups who are not in SharePoint site. For instance, in a customer issue list, if you would like to send emails to customer when his (her) issue is solved, you could add SharePoint Alert Boost workflow on this list and configure the sending targets as "Customer Email" column.
If SharePoint users want to send reminder emails for upcoming deadlines, overdue item, or change of item status, SharePoint "Alert Me" cannot provide such function. With SharePoint Reminder Boost, these requirements can be fulfilled.
Sending condition is much powerful with SharePoint Alert Reminder Boost. It supports expressions using functions, operators and columns of the list.
SharePoint Alert Reminder Boost can customize email contents. Email subject can also be customized with your own text and column placeholders.