If you have audiences that you are using often, a block of Interests or zip codes for example, you can save those audiences to use them on future campaigns.
On Step 3 of the creation form, you can choose to load a pre configured saved audience.
At the bottom of the page, there is the Save Audience feature.
With the save button you can save the target you are currently defining, while with the Overwrite existing audience button you can overwrite the audience you have loaded above.
When you are saving audiences, they are saved to a specific Ad Account. If you need to, you have the option to copy an audience from one Ad Account to another.
Note: Copying audiences between Ad Accounts is only supported for compatible fields. Assets specific to the Ad Account (i.e. Custom Audiences) cannot be copied from one Ad Account to another.
To copy your audience, go to the asset manager and find the audience you want to copy. For this example, we're going to copy an audience from our "AdEspresso" ad account into our "Massimo Pazzaglia" ad account. Click on the gear icon in the settings and select the "copy" option.
Once selected, you will be prompted to specify a name for your audience and a destination ad account and folder.