The shipping site is the storage site from where the products will be shipped when the quote will have been ordered.
The shipping site is initialized to the shipping site entered on the ship-to-customer (it corresponds to the usual shipping site for this delivery address) or, if nothing has been specified, to the user's default storage site. In both cases, the shipping site must belong to the same company as the sales site, otherwise it will not be submitted and it will have to be necessarily entered.
The shipping site is modifiable under certain conditions:
The shipping site entered in the header is used as the default value for the quote lines. If it is modified and the quote lines are present, the system suggests to the user to modify the shipping site on all quote line. The header shipping site is taken as default value for new lines.