What to call this job role

[Avelosa]

We have a vacancyfor our office, but we're not sure what title to give the job. We supply water treatmentproducts, and every customer on our database has to be contacted to remind them of any upcoming maintenance that is due. It involves making around 40/50 phone calls per day. There is also some invoicing involved, as well as route planning and diary keeping for the engineers. There is absolutely no cold calling and no sales involved, as all the people that are contacted are expecting us to call and know who we are

So far, we have listed it as - Sales Administrator and Customer Service Administrator
But neither of these seem quite right as the title. We were thinking maybe Admin Assistant, but there's not a huge amount of admin involved

Office assistant?

I used to do this job in water but without calling people, I was a scheduler.

Customer Account Support
Renewals Assistant

Customer Support Administrator?

That's my teams job titles and we are basically sales and service administrators (not selling, just support for the teams)

Account Manager?

Thank you so much everyone! Not sure why my brain had a complete meltdown and couldn't think of any of these

Customer Liasion Officer?

Customer relationship Assistant/officer/support?

Service Administrator.

Operations and Scheduling Assistant?