In Accu360 Buying module ,while making Supplier Quotation from where we get to know that the Quotation was received by Supplier in ERP apart from Email Notification
Since in the supplier end only email is the source where he/she gets to know when quotation or any voucher is created (if notification is created). Other than that via sms or whatsapp notification can be generated from accu360.
You can set any notification to any media like Whatsapp , SMS and mail. You can configure it from Notification. @Haider