Custom (user-defined) native ad formats allow you to define your own variables for traditional native ads. A native ad format is a set of variables and styles that comprises a native ad. Variables can be values such as headline, image, body, app icon, call to action, etc. These variables have no associated rendering or styling information. Traffickers provide values for the variables in these native ad formats, and Ad Manager uses these values for the content of native ads.
The standard (system-defined) native ad formats cover many use cases for trafficking native ads. Also, only standard native ad formats are supported for programmatic native ads. However, there may be times when you need the flexibility to create your own native ad format. With custom native ad formats, you select the variables you want to include.
Add a custom native ad format
You can add a custom native ad format when defining the ad settings using the HTML & CSS editor or Android & iOS app code option. When adding variables for a custom native ad format, you first select the type of variable a trafficker can enter, such as a File, Number, or URL. Ad Manager then displays the settings related to that type.
|File||Trafficker will click the Choose file button and upload a file.|
|List||Trafficker will pick from a list of options.|
|Number||Trafficker will enter an integer.|
|Text||Trafficker will enter a string.|
|URL||Trafficker will enter a URL.|
Variable settings based on the type
|Setting||Available for these variable types||Description|
|Require entry when trafficking||All||Select whether it will be required for the trafficker to add a value for the variable.|
|Variable name||All||Enter a name for the variable.|
|Help text||All||You can enter the text for a custom help pop-up. When the trafficker hovers over the question mark next to the variable, a help box with this text will appear.|
Enter the default value that will appear for the field. If you don’t enter a value, the field will be empty until the trafficker enters a value.
For the "Number" variable type, the system sets 0 as the default if you don't enter a value.
|You can enter a value for the variable so it will appear in the native style preview.|
|Only allow certain file types when trafficking||File||
You can restrict the trafficker to upload only the file types you select here: jpg, png, and gif.
Note the Google Mobile Ads SDK doesn't support animated GIFs for native ads.
|Options||List||These are the options that traffickers will pick from when adding a creative. If you select “Allow other options when trafficking,” traffickers will be able to add text in a box.|
|URL type||URL||The first three options are used for special behaviors. Note that all custom native ad formats automatically have a variable for “Click-through URL”; you don’t need to add this yourself.