We are building an internal tool that will buy Facebook Ads programmatically - focusing mainly on email-based custom audiences.
We will be building/associating one custom audience for each ad set that we create.
We estimate that we will need more than 500 custom audiences. We are currently on the developer access level, and will be applying for Basic access soon.
For now Facebook states that only 500 custom audiences can be created https://developers.facebook.com/docs/marketing-api/custom-audience-targeting/v2.3
Will the cap on number of custom audiences be increased as you progress to the Basic or Standard access levels? Have you been authorized to create more than 500 custom audiences for a given account?