Map Shopify product variants to external ticket IDs
Tickets from Funkhaus API
Forward a variant as a different external ticket when the order was placed with a specific Shopify discount code. Funkhaus has no coupon codes — reduced ticket types exist there instead, and this mapping swaps the target on forwarding. The code field accepts a comma-separated list of codes and * wildcards (e.g. GL-*), so one entry covers a whole batch of codes.