My Employer submitted application on 4th November, Yesterday company immigration lawyer informed me that they got Restricted COS but a little Admin work to be done by company then they book an appointment for next process. not sure what he means by admin work but i hope everything goes well * finger...

Hello everyone ,. Genrally how much time home office take to generate COS. My employer refers me to company immigration lawyer in last email he mention that they will apply for COS ,. So how long should i wait and ask about COS status
I hope i am clear enough sorry if its a dumb question