Why is add-on better than custom, any day?
Implementation is like marriage. For better or worse, you choose a piece of software, take it under your roof and commit to it for a long term, so help you God.
And as in marriage, if you want to live happily ever after with your new software, the my way or the highway attitude doesn’t help much—you must be open to compromise.
Last Monday, I argued for avoiding customizations if at all possible, an argument I stand by firmly. It’s like forcing your wife to color her hair pink. I don’t know about your wife, but mine doesn’t color her hair pink. If you like it pink, it’s probably something to think about before turning your yes in.
But NAV is NAV, isn’t it? It has what it has, and if I need it different, I have to customize it, right?
Wrong. You can compromise.