public JourneySMSMessage withOriginationNumber(String originationNumber) {
        setOriginationNumber(originationNumber);
        return this;
    }
<p>
The long code to send the SMS message from. This value should be one of the dedicated long codes that's assigned
to your AWS account. Although it isn't required, we recommend that you specify the long code using an E.164
format to ensure prompt and accurate delivery of the message. For example, +12065550100.
</p>

@param originationNumber
       The long code to send the SMS message from. This value should be one of the dedicated long codes that's
       assigned to your AWS account. Although it isn't required, we recommend that you specify the long code
       using an E.164 format to ensure prompt and accurate delivery of the message. For example, +12065550100.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-pinpoint/src/main/java/com/amazonaws/services/pinpoint/model/JourneySMSMessage.java