Developer level Access : Modifying Campaigns



My Company has just got the access to Twitter Ads API developer level. I created a campaign using twitter Ads UI account of my company and I was trying to change its targeting location to India using Ads API. I was using the following request :


The response I got back was:
“message”: “The client application making this request does not have access to this API”

I wanted to clarify that if this was because developer level don’t have the API access to modify campaigns or I might be doing something wrong?