If the OC has closed, you can still edit an order - but only variants that were in that OC show up as options to add in the dropdown on the order edit page. The ‘status’ of the order (eg. pending…) doesn’t seem to matter - still only variants from that OC show up. I try to add a new product and place it in a new OC - but still it does not show up in the dropdown - because it was not a product in the OC that the order came from.
So packing usually happens AFTER the OC is closed. I want to add a different product - that was NOT in the OC - to an order. I want this change to be reflected on either the invoice or the pack by customer report so I can generate up-to-date- packing slips. But - whenever the variant was NOT in the Order Cycle - my only option is to hand write the change on a printed slip.