Some variants quantites weren't able to update

[noapaxx]

Hello, I'm dropshipping and I added product to my shopify store. I added quantities to variants to make discount if someone buys more of the same product. But I can't update number of avaible products, it is currently on 0 and it is showing that the product is out of stock. Whenever I change the 0 of avaible products to different number it says "Some variants quantities weren't able to update" and I don't know what to do with it. Do you know how to solve this? Thanks.

[RB2812]

Have you found the solution yet? I'm having the same problem