Business Central Espresso - booking matrix

What is the booking matrix? And to what extent does it keep a company running?

In the booking matrix there are any combinations of business posting groups and product posting groups. This is where the "wiring" to the G/L accounts takes place.

The sales department has B. successfully win a new customer and enter the first order into the system. After the delivery has taken place, this sales order is posted and thus moved to the archive.

In this business transaction, there are various postings where the posting matrix comes into play:

Using the posting matrix, Business Central recognizes to which accounts this business transaction should be posted. 

The structure of a posting matrix can be simplified as follows: