Booking not possible - "Before blocking date"


I try to do a booking but cannot. It says “Before blocking date”.
What is it and how to change it?


The blocking date is a safety that you can create in your account to block any booking before a specific date.
You can change this date at any given time.
To do so, go to “Parameters->Company Details”
In the section Accounting you find the Blocking date.
Do not forget to Save at the bottom.