Go to the Data Management administration area
Create 2 properties with the following values:
Name: adl1 & adl1_meta
Status: Validated
Type: String
Property key: adl1 & adl1_meta
The screenshot below shows the configuration for the "adl1" property. For "adl1_meta", the configuration is the same.
Note : the meta name does not refer to the Meta group (Facebook, Instagram, Whatsapp). You don’t need to create additional custom dimensions like adl1_google or adl1_tiktok.