Better phrasing for “year we started working with [them]”?

Question

I'm making a database, establishing the fields where data is entered. The database stores a list of school systems that our company has worked with. So there's a field for the year we started working with them; but I'm drawing a blank as to how to summarize that in a small phrase.

Is there a better phrasing for the title of the field, rather than "YearWeStartedWorkingWith"?

Answer 1

I am assuming you want a short, concise field label, correct?

How about one of these:

• Worked With Since
• Partner Since (if you consider the school systems partners)
• Since Year
• Year Started

Answer 2

"Inception" means the beginning of something.