Galaxy s5 How do you save pictures on messenger to your photo gallery?

[AC Question]

I cannot transfer messenger pictures to my photo gallery.

 

[ManiacJoe]

In great detail, what steps are you taking?
Are you trying to save to internal storage or SD card?
What is the exact wording of the error message you are getting?

 

[B. Diddy]

Welcome to Android Central! Also, which messenger app? Is it the stock Messaging app, the Google Messenger app, or the Facebook Messenger app?