A POD beneficiary is not "a person opening an account" and is, thus, not a customer subject to your CIP unless your bank has chosen to include them.
Oftentimes, banks required detailed information on IRA beneficiaries because there are income tax implications to inheriting an IRA.
If it's not required by your bank's policies, it's simply not required.
_________________________
In this world you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant.