Depending on the size of the order, a meeting called "kick off meeting" is held.
When I worked for the company, I had some opportunities to attend it, which was my first experience and it was very lucky for me.

The meeting was mainly done in Taiwanese, so we didn't know the
details without the support of our local representative. They concentrated on the meeting and translated the important parts into English. After having listeninged to them, I explained what they said to us to my boss in Japanese.

(They sent us the contract in advance and we understand the details, of course.
I also memorized technical words and important things in advance... I already know it's very important.)

Even if it was the superficial knowledge, I need to learn it widely and shallowly, I thought at that time.

Even now, I put an emphasis on this point (attitude).