If you encounter a permissions error, the primary user can grant you access by navigating to “Settings > User Permissions > Global User Permissions > (locate relevant user) > Manage Rights > Brand Benefits > Brand Tailored Promotions.” This feature is still in BETA, so not all Amazon Seller accounts have access to it.
If you’re reading this, then you probably have revenue and profitability targets in mind, but you either don’t have the resources or you’re not sure how to get there.