We are developing the app, have created it in developer portal, but it seems that it doesn’t have access to ADS API that we need. We get the errror - The client application making this request does not have access to Twitter Ads API

How that can be fixed? In the app settings we chose - Read and Write permission. The previous app we create does have the API, it is displayt as icon - ADS API, the new one doesn’t

This process is outlined here: