An Advertiser Attempts to Enable Target Cost-Per-Acquisition (CPA) Bidding but The Option Isn’t Available. the Most Likely Reason Is that The Advertiser:

An advertiser attempts to enable target cost-per-acquisition (CPA) bidding but the option isn’t available. The most likely reason is that the advertiser:

  • has fewer than 5 conversions in the last 15 days
  • is using another automated bid strategy
  • has fewer than 15 conversions in the last 30 days
  • is using Google Analytics

Right Answer:

  • has fewer than 15 conversions in the last 30 days


Conversion Optimizer is a tool in Google Ads for the advertisers. It will go through all of the statistics of your ads and conversions. Based on that, it will alter your bid price so that you receive the best revenue or return on investment out of it on a larger scale.

This tool is a boon for advertisers who are kind of unsure about the bid prices that they need to put for their ads in their campaigns. Sometimes, manual bidding is not the cup of tea for everyone. With the dynamic rules and regulations in place, automatic bidding and the conversion optimizer is the need of the hour.

However, with everything amazing, comes an equally bad situation or issues to deal with. There are a few problems that will arise while using a Conversion Optimizer. Those are as follows:

  • Can’t Enable Conversion Optimizer: The conversion optimizer uses the Advertiser’s Data, goes through it and finally alters your bid. However, it won’t be feasible if there are less than 15 conversions in the last 30 days
  • Actual CPA is higher or lower than Target CPA: Tinkering with your Target CPA becomes a necessity since it might be higher or lower than the Average CPA. Since the Average CPA depends on the outside market and things that Google has no control over, it is understandable to alter your Target CPA at times.
  • Traffic rate decreases after enabling Conversion Optimizer: If you have set a low Target CPA, chances are that you will get a massive decline in Traffic rate after enabling the Conversion Optimizer. Also, it specifically focuses on conversions, hence your traffic will be low since the Conversion Optimizer will direct it to the worthy only.
  • Compatibility with Google Ads features and third-party ads: Separate Display Network bids and Advanced Ad Scheduling is not compatible with Conversion Optimizer. Hence, you will have to take care of that fact as well.

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