Sorry for not being accurate with our requirements.
We operate a supermarket and whenever an invoice is done on POS, we would like to send SMS to customer containing the order total and a link to see the invoice in their phone/tablet/pc.
We are hosted on ERPNext Cloud and all we have now is Textlocal & MSG91 SMS gateway accounts. We know what details have to be entered in the SMS Settings of ERPNext. We also know that we can send SMS from Menu > Send SMS after opening an invoice.
What we would like to know is how to customise the message which will be sent out and how do we automate the whole thing so that SMS are sent automatically whenever an invoice is made on POS?.
Thanks in advance.