Add tCPA by ad group
The ability to set a Target CPA by ad group. If you have different products with their own desired tCPA in one campaign, tCPA doesn't help at all. In this case, tCPA at a campaign level tries to normalize all the ad groups within the campaign, which isn't optimal.
And, Google allows for tCPA by ad group.
Please add tCPA by ad group so we can have more granular control inside a campaign. The workaround to break out campaigns into tCPA's is not ideal.
Edwin Gan commented
Yeah! Please. We need tCPA!