I created some "products" for this, but it didn´t work properly;)  I think I handled everything ... I am testing this for real life and couldnt find any settings and if create journal specially for this where to take it into use. Do I miss some apps?

take money out - error message  Odoo server error / " there is no cash register for this PoS session"

put money in / the same error message.  videos do not tell anything about this and I have gone through all settings.