Exam PCCSE topic 1 question 35 discussion

A business unit has acquired a company that has a very large AWS account footprint. The plan is to immediately start onboarding the new company's AWS accounts into Prisma Cloud Enterprise tenant immediately. The current company is currently not using AWS Organizations and will require each account to be onboarded individually.
The business unit has decided to cover the scope of this action and determined that a script should be written to onboard each of these accounts with general settings to gain immediate posture visibility across the accounts.
Which API endpoint will specifically add these accounts into the Prisma Cloud Enterprise tenant?