How can I add custom fields on my messages?

Login to the new customer portal and go to Campaign Manager -> SMS Sender.
Under destination, choose upload and select the file you want to upload. Click here for a sample file
Once the file is uploaded you should see columns like Mobile, First name, Last name, order number and date. If you got a smaller screen try scrolling on the right, so you can see order number and date column.
Tag Mobile number first by click the arrow down button. Mobile, First name and Last name are the default fields, where Mobile is mandatory.
Let's say you want order number as a new field, all you have to do is click the arrow down button on the order number column.
On the field provided type the name of the new field, for this example just type "order" and press enter and then select "order".
To include this on your message click "Add fields" under Message and you should see a dropdown value called “order”.

If you want to add custom fields on your messages, remember to include it on your .csv, .txt or .xls file, before uploading.