Q: Why am I receiving "Exceeded maximum number of variants allowed" when listing to Shopify?


A: At this time, Shopify API has the following restrictions:


Shopify will limit Products / Variants you can create with any Shopify app that uses Shopify API. The limit is currently set to 1000 variants per 24 hour period, once a shop has created 50,000 Product Variants (subject to change)

This is as of March 2019. This is referred to as a "throttle". There's nothing to do in this case, besides click Move to Draft and then go to your Draft List to edit and post the item on the following day as we cannot get around Shopify API limitations.