Hello, I know this is a very broad question, but I am trying to get a very ball park figure in Partner days in how long a typical 2009 R2 to 2013 R2 upgrade for a 35 user system would take. I know there are many variables, bespoke code, reports etc but just trying to get a general idea, would it be 10 days, 15, 20 etc?
We have only been live for 18 months so our database is still quite small
Any ideas??