The phrase "acted as liaison" is correct and usable in written English.
It can be used when describing someone who facilitates communication or cooperation between two parties or groups.
Example: "In her role, she acted as liaison between the marketing team and the sales department to ensure alignment on strategies."
Alternatives: "served as intermediary" or "functioned as a mediator."
After V-E Day he acted as liaison officer with the Soviet forces in Germany.
JP procured INPA fish collection permits, acted as liaison with indigenous tribes, and assisted in data collection and interpretation.
As a fluent Khmer speaker, he acted as liaison with the Khmer Rouge until the foreigners were able to leave Cambodia for Thailand.
"I have seen changes in Central Islip that are unbelievable," said Judge Leonard Wexler of United States District Court, who acted as liaison in the construction of the new federal building.
Mr Abe made a name for himself a few years ago as the leading hardline voice on North Korea when he acted as liaison for the families of Japanese nationals abducted by Pyongyang agents in the 1970s and 80s.
(He first sought and received approval for his efforts to "correct public misimpressions" from the state attorney general's office and the C.D.C.R. spokesman in Sacramento, who himself acted as liaison to the governor's office, which would have to rule on Williams's petition for clemency).
(The Giants disbanded the so-called leadership council of players who had acted as liaisons since 2007).
Coach Tom Coughlin disbanded the so-called leadership council, roughly a dozen players who had acted as liaisons since 2007, in favor of naming three captains.
Willis's friends often acted as liaisons between him and his doctors.
Matthew Jackson, senior consultant at CfAppointments Matthew acts as liaison consultant between charity and education teams.
The GHA acts as liaison between students and the department, Graduate School, and University.
