Certainly, your approach of considering CPC and ACOS to set a stop 10-20% below the last 30-day average CPC is a solid foundation. To enhance this strategy:
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Extend the Data Window:
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Flexibility for Inconsistent Keywords:
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Align Maximum Bid with CPC:
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Consideration for TOS Placement Adjustments:
By incorporating these considerations into your approach, you can develop a robust strategy for determining minimum bids with bid automation, catering to the diverse landscape of keywords in your advertising campaigns.