Hi guys,
I have a 9.12.4 application which suddently didn't return a product anymore on the GetProductByNumber call.
We found out that when we open a product in the CMS and save it without changing anything some fields in the database go from NULL to 0 or empty string, such as ProductPurchaseMinimumQuantity.
The GetProductByNumber method works for unchanged products with NULL. But doesn't work anymore for newly saved products !