MonsterMage

[shrewd swan]

Okay, that's a lot and I'm not really sure where to start. You can update/create Customers programmatically, but there is no bulk option in the Dashboard. Same goes for Subscriptions.

[nimble kestrel]

Thank you @shrewd swan , would you mind directing me to information about updating customers programmatically?

To add subscriptions to them in bulk and set subscription start dates