It is interesting to know complementary information so that I can suggest to you a range of potential products like - Are the 3000 nodes are located around a few countries or in a unique site? - Is the plan of production for each node similar? - What tool do you use for…

With my experience, the first step to automate your IT Production is back-up of your servers and common infrastrcture or exploitation tasks which can run the night. After that you can automate HR software and business specific application when your workers have got a good…

I think technical tasks and business application after.