Automatic SKU generator (random)

The module is unfortunately very limited for a marketplace (can not use the product ID without saving twice the variation).

It would be really great to be able to generate SKUs automatically (randomly).

Additional options would be needed to choose the length of the SKU and whether to use numbers and / or letters.

A sort of automatic code generator that verifies that the generated code is unique.

This would be very useful for a marketplace. If there are many products.