The Quantity Of The Product In Your Cart Has Been Changed To Allowable.

Important The quantity of the product Some Product Title in your cart has been changed to allowable.

What does this mean, how to get rid of this, getting this every time enter product description ?

For example

- there is no required amount is stock

- product amount is not equal to product quantity step

or you have a minimum qty set eg 10, and someone tries to buy just 2

Thanks for help.

What was the reason?