This articles explains how you associate Creatives Creatives to Line Items in the Ad360 Web Console.
For web or app users to see your Creatives, you need to associate them with the Menadex Line Item(s) of your choice. To do this, go on a Line Item page and click the "Associate Creative" button.
Note that this only works with Menadex Line Items.
For Line Items of External Channels (such as Google Line Items or Facebook Line Items), the creatives are directly managed in your External Channels (in your Facebook Creatives Library or your Google Ads account).