We are working on PO approval FIORI app and part of requirement is to send email notification, letting the PO approval know that something needs to be approved.
We followed the below blog and configured/developed as per the blog.
https://blogs.sap.com/2015/04/04/extended-approval-notification-with-sap-fiori-component/
But when we run the program swn_selsen, its not sending any email to SOST.
WE looked at SLG1 log and its pointing to below error.
"Error Unable to read receiver address (RML)".
I have already verified that the User have INT in communication method in transaction SU01.
Will appreciate if anybody can give some pointers on how to resolve this error.