ExportUserInfoToAdminSystems.exe, this runs as as service and must be set up, read more here: Configurator/Services

User info

Lectio

ExportUserInfoToAdminSystemsLectio.exe - must run as scheduled task, the normal service does not work for this,

EASY-C

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Why is phone number not written back to AdminSystem?

Look in table ExportUserInfoToAdminSystems + log file, restart service