Configure notification automatic and manually

[Shurooq]

Hello Expertise, Can anyone help me with how to implement an automatic reminders to be sent for pending items, tasks before its due date ? 

and to give user ability to send reminders manually from the system?

Thank you

[Saurabh Gupta]

Hi @Shurooq 

Check below post for sample.
How to sent Reminder Mails for every 7, 14, 21 and... - ServiceNow Community

[Namrata Ghorpad]

Hello @Shurooq ,

Please refer the below link.

https://www.servicenow.com/community/itsm-forum/approval-reminders-through-scheduled-jobs/td-p/27071... 

https://www.servicenow.com/community/developer-articles/automated-email-reminders/ta-p/2729845 

Please mark my answer as helpful and correct if it helps to resolve your issue.

Regards,

Namrata