Set Warehouse based on Vendor

Set Warehouse based on Vendor

Greetings.
I would like to set automaticaly the Warehouse based on the Vendor.
Context:
I am working on an adaptation of a Purchase Order to be used as a Quotation.
I have defined that when a user has to raise a quote the Vendor will be "PROCUREMENT"
I would like to set the Warehouse to a predefined value when "PROCUREMENT" is set as Vendor.
I have tried to do with the Automation feature using the Field Update option, but Warehouse does not is listed as a field.
Can you help?
Thanks in advance.