Why do I keep getting 923-0 messages when trying to text?

Try the fix from cookiebug79. It works great.

I just simply blocked the message. Ever since we upgraded and we're able to block message senders. Thats what I did and I havent seen one since. Its been an hr now. I was getting them every 5 mins. Very F-ING annoying

Can you only send messages to only Iphones? That was my issue I went to settings >messages>send as SMS from when I purchased it this was turned off (factory setting perhaps). I had to turn it on.

Then delete the contact and all calls and or texts to and from the number it will confuse the system if you dont and revert back to the saved info even if you correct the info in the contact. send the message using only the numbers NOT as a contact. use 1 the area code and number like this 1(914) 965-5751. After you send the message you can save it as a working contact.

This worked for me hope it does the same for you :-)

God bless & eat bacon! (iphone clap & pow)

I was having this same problem. I tried the solutions on this page and none worked. Finally I edited the contact info and clicked add phone.The phone went through a sequence of Home, Work, Iphone and then finally Mobile. I enterd the number under Mobile and the error message went away. In hindsight I remembered that this is pretty much the same error you get when you try to text to a land line phone number.

Yooo bro it's crazy I know its been a couple years and your question probably answered already but I did the network reset thing and made sure my Apple ID was legit again so I wasn't looking crazy. After about five minutes i go to my girls chat box option thingy that normally said send texts since my imessage F*d up now said send Imessage. Just to make sure I wasn't being had I sent a message and it came out blue instead of green I'm so happy :,)

Jeffed

After several hours putzing with other solutions that did not work.

This one worked!

Very thorough, analytical answer.

Thanks again.

None of these suggestions helped me with that 923.0 error message I kept getting. Ultimately the only thing that did help was a HARD reset. When I came back up I could not select the iCloud setup I had to setup like it was a NEW phone.

It was a NIGHTMARE which lasted 5+ days and who is to say it will not happen with another number in my Contacts listing. This episode was with only one specific number but I only text to a select few people in my listing. From what SPRINT said this is an ongoing issue with the iPhone and it became even more prevalent with the iOS 8 update.

Thank you Jeff -worked for me! (5s, Sprint)

After trying several things, the only thing that worked was to do a complete Factory Reset of the phone. Unfortuntely, you will not be able to restore any of your data/pictures.

I tried many of the suggestions, nothing worked and then I decided to try the Factory Reset and I am able to text the user without getting the Error 923-0.

I Figured it out! In setting/phone, turn off dial assist. It worked as soon as I turned it off! Not sure what that means for future calls or international but it worked. Hope it works for you guys!

if you are receiving the message that means the message is going through but then stopped by the carrier because its an invalid number.

Did you get error message 423-0 fixed? I'm looking for problem fix too.