First of all: IT Rechtskanzlei is a german online law firm which is providing german legal texts especially adjusted for branchbob sellers and German law. For the following you need to sign up under https://www.it-recht-kanzlei.de first. This is what to do next:
Go to your legal texts > AGB and hit "Datenschnittstelle"
2. After clicking on "Datenschnittstelle" a new tab will be opened and you will be asked to choose the shop system you are using. Choose branchbob v2.
After choosing the shop system you now enter your API token from your branchbob cockpit.