Trying to make Syncronised Data Extension attributes to be available for MobileConnect group in Contact Builder / Data Designer.
Despite linking the Account_Salesforce syncronised data extension to the MobileConnect Demographics table, the list of available attributes is not showing up in MobileConnect contact Attribute list.
Is there a step I'm missing here? There wasn't anything extra in documentation.
The only thing I can think of is the fact that on MobileConnect Demographics we have 18-digit contact ID field and on Account_Salesforce we have 15-digit contact ID, which are used to link these.