Why is making a lot of modifications to a packaged system sometimes a risky approach, and what are the alternatives?

Why is making a lot of modifications to a packaged system sometimes a risky approach, and what are the alternatives?

Why is making a lot of modifications to a packaged system sometimes a risky approach, and what are the alternatives?
Why is making a lot of modifications to a packaged system sometimes a risky approach, and what are the alternatives?

 

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