Hello, I'm trying to send an SMS on our sandbox account and I'm receiving the following error code MSG-242. From the other posts it looks like you are manually giving sandbox accounts the ability to send SMS. I didn't see any automated way to enable that.
Dear @Phong Vu, I am also facing same problem. My sandbox number is +15856234124. Could you please enable Sms service?
HI @Phong Vu
I am also facing same problem with production number .
I am using php curl and postman also.
Please enable. We are already a premuim customer
No, you don't face the same problem. All your numbers on the production are shown SMS enabled and the main company number is A2P SMS enabled.
Open a dev support ticket for help. And treat your production phone numbers as private information and don't post them in public forum.
HI @Phong Vu
I am also facing same problem with sandbox number 14242555859.
Please enable. We are already a premuim customer
Request created. Please stay tuned
did you use this code to detect if the number has the SmsSender feature?
var resp = await platform.get("/restapi/v1.0/account/~/extension/~/phone-number")
var jsonObj = await resp.json()
for (var record of jsonObj.records){
for (feature of record.features){
if (feature == "SmsSender"){
// use the record.phoneNumber to send SMS
}
}
}
When I hit that endpoint I only get one record and the only feature it has is "CallerId"
It means that the phone number is not provisioned forSMS. Is that the main company number or a company number? What is your main company number?
I am able to send SMS using sandbox number "+16282312108" but not able to send SMS using production number "+19705198004". When I try to send it shows 
Please help, I am a premium customer of MVP
Did you read the phone number feature? Which API returned that error?
what is the phone number feature? I could not find it anywhere. And I am using SMS API. I am a premium customer of MVP
In my original answer.
var resp = await platform.get("/restapi/v1.0/account/~/extension/~/phone-number")
var jsonObj = await resp.json()
for (var record of jsonObj.records){
for (feature of record.features){
if (feature == "SmsSender"){
// use the record.phoneNumber to send SMS
}
}
}
I am also facing the same problem of not having the SMSSender feature enabled in my sandbox. If you could please enable for me as well, I would greatly appreciate it. Sandbox +14242563327.
Request created. Stay tuned.
16504497761
Your number is SMS enabled now. Please try and let me know if it still does not work.
It seems to be working now, thank you.
I just had a look at your sandbox account and found that the number is not provisioned for SMS. Not sure about the reason but I created a request to provision it. You can wait for a while until the number is provisioned or add a direct number to the admin user and use that number to send SMS.
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