Budget bid strategy includes campaigns that use a shared budget

For budget bid strategies without auction-time bidding enabled, the budget bid strategy will only optimize the daily budgets of the campaigns that aren't using an engine's shared budget. For budget bid strategies with auction-time bidding enabled, the budget bid strategy will optimize the daily budgets.

How to determine if campaigns are using a shared budget in Budget management

1. In the left navigation panel, click Budget management.
2. In the "Budget group" column, click the name of the budget group. 
3. Next to the settings icon , click View all campaigns.
4. Add the shared budget column to the report.
   1. Above the reporting table, click the Columns button.
   2. In the search box, type "shared budget".
   3. Click the + sign to add the column to the "Selected columns" list.
   4. Optional, drag the column to position it.
   5. Click Apply.

      The shared budget column displays "Yes" for any campaigns that are using a shared budget.

5. If your campaigns are not using auction-time bidding, do either of the following:
   • Remove the campaign from the budget group.
   • Remove the campaign from the shared budget. (See Google Ads or Microsoft Advertising help for information about how to remove a campaign from a shared budget.)

How to determine if campaigns are using a shared budget in Bid strategies 

Alternatively, you can add the shared budget column to the campaigns tab in a bid strategy report.

1. In the left navigation panel, click Bid strategies.
2. In the "Bid strategy" column, click the name of the bid strategy.
   The Greek letter delta Δ is appended to the name of a budget bid strategy.
3. Click the Campaigns tab.
4. Add the shared budget column to the report.
   1. Above the reporting table, click the Columns button.
   2. In the search box, type "shared budget".
   3. Click the + sign to add the column to the "Selected columns" list.
   4. Optional, drag the column to position it.
   5. Click Apply.

      The shared budget column displays "Yes" for each campaign that is using a shared budget on the engine.

5. If your campaigns are not using auction-time bidding, do either of the following:
   • Remove the campaign from the budget group to allow a budget bid strategy to manage the total spend efficiently.
   • Remove the campaign from the shared budget. (See Google Ads or Microsoft Advertising help for information about how to remove a campaign from a shared budget.)