Bidding and Budget
Definitely NOT. The initial bid should be within the rage shown using the keyword planner and be further adjusted based on campaign's performances and QS.
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If you have used the keyword planner and the bid estimate is $10, a daily budget of $20 will not allow your ad to run.
The problem is that Google will show your ad to multiple users at the same time. So, let's say Google serves up your ad to 5 people, all at the same time, and 3 people click. They have now exceeded your daily budget by 50%, and they guarantee daily over-delivery to be 20% or less.
Chances are you will get very few impressions with this set up, if you get any at all. If you do get impressions, they will most likely stop after the first click of the day.
Best of Luck!