https://preproduct.io/docs-tag/variants/
variants Archives - PreProduct
variantsarchivespreproduct
https://preproduct.io/docs/triggering-pre-order-fulfillment/
Triggering pre-order fulfillment - PreProduct
This guide is specifically for charge-upfront pre-orders triggering pre-order fulfillment. For charge-later and deposit-upfront pre-orders,
pre ordertriggeringfulfillmentpreproduct