- I like the addition of full error reporting for all status code 4XX — it’s in keeping with a key tenet of 21’s philosophy, i.e. full support for *all* http status codes, including 402.
- Not sure the buy bugs are all fixed — I’m still having a known issue with a 21 buy command where the route hub handling doesn’t seem to work properly.
Display error data for responses with status code 4XX.
Reproduce channels customer payment from the merchant side.