Welcome to the RingCentral Community

Hello,

We are trying to use the javascript sdk to send SMS messages.

We use the main extension to login to the sdk, and pass a users RingCentral number as the from parameter. We receive the error "error: phone number doesn't belong to extension" as a response.

Here is some code we are using to test.

async function send() {
    const sdk = new SDK(config.ringCentral)
    await sdk.platform().login({
        username: config.ringCentral.user,
        extension: config.ringCentral.mainExt,
        password: config.ringCentral.pw
    })

    const message = {
        from: { phoneNumber: '1<Ring Central number>' },
        to: [{ phoneNumber: '1<my cell number>' }],
        text: 'this is a test message'
    }

    const res = await sdk.platform().post('/restapi/v1.0/account/~/extension/~/sms', message)
    console.log(res.data)
}

Any assistance you can provide is appreciated.