In order work with Native Ads your Administrator and/or Inventory Manager has to set up Ad Types Slot Sizes accordingly:
Add Picklist Values
Open the Ad Type object and edit the values for the dropdown fields for
- ADvendio__Master__c and
Create or more new picklist values with the following syntax: "native (Google Ad Manager Creative_Template_Id)": Native in lower case letters + blank + parenthesis + Google Ad Manager Creative Template ID + parenthesis. Example: native (10099414). Make sure that you only select ADMANAGER as a record type if you are using more than one adserver.
You can view these IDs in the Google Ad Manager UI under Delivery > Native > Native Formats (see the ID below each native ad format name in the table).
Modify Ad Type Records
Next add those new values to the respective Ad Type records slot sizes which allow native ads.
Translate Creative Template IDs (Optionally)
If needed you can also translate the IDs in the translation workbench to make them more readable for the end users. Example:
Read more 7.1.7 Localisation and Translation