What can I change on Amazon advertising console?

You can modify a few things but you should not modify much

You can modify

1. Budget (account - level): You can change it at the level of your account setting without consequences. Beware the algorithm does not take the account-level budget you set in its predictions!
2. Your own campaign: We recommend you pause them

You can modify but the algorithm will overwrite your changes

1. Budget: You can change it at the level of the campaign or portfolio without consequences but the algorithm will overwrite it later on. 

You should NOT modify!

1. The bids: If you do, the algorithm will learn about corrupted data and its optimisation will be compromised.
2. Keywords and product targeting: If you do, the algorithm will learn about corrupted data and its optimisation will be compromised.
3. Negative targeting: If you do, the algorithm will not optimise the sales well anymore and it might miss good targets
4. The campaigns name: if you do, the algorithm will not recognise its own campaigns any more
5. Change a campaign from one portfolio to another: if you do, the algorithm will not recognise its own campaigns anymore
6. Change a portfolio: if you do, the algorithm will not recognise its own campaigns any more