I have been following Set up a paid app or theme, and have created Stripe product with multiple plans/prices in test mode.
When submitting my app, and selecting "Paid App", I was asked to enter Plan ID, which I did, but app was not submitting with error:
The task failed because of an error: 422 Unprocessable Entity: {"error"=>"RecordInvalid", "description"=>"Validation failed: Stripe plan must exist in stripe"}
When using public plan ID, it works fine, so, the question is, how can I set up my payment to use Stripe test mode plans?
Seems like dashboard interface has been changed a lot from the time article was created, so steps differ a bit too.