As a Marketer who is using Maropost Marketing Cloud for both email and SMS, and because the email contact database is separate from the SMS contact database, I use Data Journeys to export email contacts (that have a phone number value) to FTP and then import them into the SMS list.
Doing this allows me to import from external source only once to email database in my MMC account, rather than having to import from external source into both email and SMS contact lists.
I now want to be able to send automated 'transactional type' journey SMSs in addition to bulk broadcast SMS campaigns, and in order to do this, I must use the unique identifer field so Journey automations can link email contact to SMS contact, but because the data journey automation doesn't support the unique identifier field on the Start Import step, I must manually add those unique IDs to the contacts in the SMS lists.
It would be amazing if the Start Import action in Data Journeys, and the SMS List option allowed for mapping of a unique identifier field, in addition to the 2 fields we now ingest (email, subscribed status)
See screen shot attached showing the action
