save copy of the messages SMS/Push

Description - while in emails you have bcc functionality that allow the company to have a copy of the exact message sent to the client , in push and sms there isn't a way to do that 

Why is this feature important to you - we work with insurance and banks and it really necessary to have copy of the end client.

How would you like the feature to work - i think the best is the save the data in temporary dataset for a month , and let us to export it with the destination feature then delete it. as i was told, this feature was in the former campaign product 

Current Behaviour - no record at all