SCCM 2012 r2 service accounts

I am In the process of upgrading SCCM 2007 to 2012 R2.

and we are recreating the the service accounts

my question is how many service accounts should I create. we need to following best practice as much as possible.

I have looked at Microsoft TechNet showing all the  accounts, there seems to be a lot.
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Kanti PrasadCommented:

The best practise is to give only access that is required to the required tasks and also not to use a single account for everything.
Some tips are there in the below link

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Member_2_7494992Author Commented:
So creating the 30 + accounts separately is best.

Thank you this was the process is was going, but was getting questioned that there is no need.
Kanti PrasadCommented:

The number of accounts (min or max) should not be the guide the rule or best practise is with minimum access if something can be done then you should only give only the required access. So your thought process is right.
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