Why am I unable to send SMS (text) message but can receive them?

[AC Question]

why am I unable to send SMS (text) message but can receive them?

I have a Samsung Galaxy S5. I tried to switch the app but that didn't work.

 

[Rukbat]

Re: why am I unable to send SMS (text) message but can receive them?

Call your carrier. If you can make phone calls you should be able to send SMS.