Can I take my laptop in for repair tomorrow?

Unfortunately, I liked a bit of Fanta on the keyboard because I was scared. What can I do

That should be total damage.

Buying a new one is probably better here, you can remove and secure the plate, shouldn't be a problem.

Can I connect a keyboard? The laptop still works, but the keyboard no longer works

Sure, in any case, leave it out and dry for at least 3 days.

Of course, installing a new laptop keyboard also costs 100 euro.

OK thank you. I'll wait the days now.