Corporate Development/ Group M&A

For those who work in group/internal m&a, corporate development etc, do you have experience in all aspects of the business/industry you’re in?
That’s to say have you worked in or have a good understanding of production, sales and marketing, finance and accounting, logistics etc?
Interested to hear about people’s journeys into corporate development and if they have experience all over the business giving them the knowledge to spot a good acquisition target.

Suen