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Log in to your client’s Seller Central account.
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Open Campaign Manager.
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Sort the list of campaigns by Sales or Spend to identify which campaigns need optimization the most.
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Open each of the campaigns in a new tab to open the Campaign page.
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Click on the ad group name hyperlink to open the Ad group page.
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On the Ad group page, click Targeting. This will show the keywords that you’re targeting.
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Review the performance of the keywords. Make sure all columns appear on the table.
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Click on the Date Range button to modify.

- As a rule of thumb, skip the last 3 days as the data for these days may not be finalized yet due to several factors thus avoiding any possible data discrepancy.
- Identify when your last day of optimization was which will be your Day 1 (From Date).
- ‘To Date’ will be the day prior to the last 3 days.
- Click Save.
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Click Columns > Customize columns.
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Tick all unticked boxes so all metrics appear on the table.

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Identify the following data on the table:
- Bid - The maximum amount you will pay for a click when this target triggers your ad.
- Top-of-search IS - The percentage of top-of-search impressions the target received of all the top-of-search impressions it was eligible to receive.
- ACoS
- Based on the example below, this keyword showed up on the top of the search 44% of the time and it generated a 45% ACoS which is a little high, especially since it's a branded term.