Due date in Supplier Quotation?

Hi, I have a doubt that makes me confused if I understand the purchasing process.

There is no field to place a due date for quotes sent to us by suppliers.

Besides not having an important data, this makes them unable to go to an EXPIRED state for example, or to filter in the reports as Quoted Item Comparison.

As I did not find a single post on the subject, I have the doubt if there is something I do not know about a typical purchase process.

Regards!

I answer myself, here is Tropicalrambler asking for two necessary data, among them, Quotation Date!