Email Notifications are not triggering for Payment Batch Approval Process

[Nandu]

Hi Experts,

We are using the S4 Hana Public Edition 

Our client needs one level check in payment approval. So, we configured activity in "Send Email to Payment Batch Approvers" for your information please find the below screenshot.

Configured same as mentioned in below link.

Manage Email Notifications for Payment Batch Approvers | SAP Help Portal

We are not able to generate the email notification for receiver mail id , but we are able to see the notification in system user level.
and also, please find the below screenshot we find while doing configuration

Please let us know, is there any work around for this issue, it will be more helpful to us.

Thank you in advance.

Best Regards,
Nandini