Let's dive into why your campaigns may be spending too much, not spending at all or running at a high ACoS.  

No or Low Spend on Campaigns:

This is most commonly a result of setting low MACS or increased competition on Amazon. Low MACs will hinder spend and discovery, resulting in bids that are too low and poor performance. Read this article to learn more about low spend situations. 

High Spend on Campaigns:

This is most commonly a result of spending on a high number of poor performing keywords. Bidding on non data backed keywords or keywords sourced from a third party, you run the risk of having your ad show up in non-relevant searches. In these situations, you may receive clicks, but no conversions. Read this article to learn more about high spend situations. 

Campaigns running at High ACoS: 

Its common to see a high ACoS on campaigns that have just enabled bid automation or recently launched. This is expected as these campaigns have low data, so we need to spend more on discovery. Read this article to learn more about high ACoS situations. 

Additional Resources:
Learn more about evaluating your goals: Are you hitting your goals?
Understand the campaign lifecycle: The Campaign Lifecycle & its Affect on Performance

Next: Evaluating Performance: Actions in Flywheel to Troubleshoot 

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