jfeezy9997

[white snow]

As far as I know, a new PM doesn't get created.

As for testing, I don't know of any way to test payment_method.automatically_updated , but let me dig a bit to confirm.

[gentle swift]

Agreed - the existing PM will be updated to have, for example, a new expiry month/year

a charge against pm_123 will go through and charge the new card yes?
yep

Also agreed, AFAIK it's not possible to test this feature

But I can file feedback suggesting we make that possible 🙂