Hi! I have a few questions for those who got their permanent residency card (Niederlassungserlaubnis) as Fachkrafte (high-skilled workers) after 4 years (48 months) of working, living and paxing taxes in Germany. I know this may not be the best thread (aka ask a German) for these questions but I don't really have anywhere else to ask these questions.

I know you have to show proof of your language level in German when you submit your application. Do you have to have a B2 level certificate or is B1 enough? I know it's B1 when you apply as a "regular" worker after 5 years but I don't know if the requirement is higher when you apply as a high-skilled worker.

Also do you need to pass a Leben in Deutschland test or not? Is a a language certificate proof from say Goethe Institute enough?

I need to know this as I will be submitting my application in a few months from now and I need to start preparing.