German to English Marketing Marketing / Market Research

Again, spreadsheet listing admin tasks related to sales team.

"Personalwesen Aussendienst (Eintritte, Austritte, Stammdatenänderungen, *AD-Verzeichnis* etc.)"

This is just a one-line entry, and I wondered if anyone knew this as a common acronym or term in Germany or Switzerland (client is in CH). I could check with the client but they're not back in till tomorrow and I wanted to finish this otherwise straightforward translation asap.