Using Odoo v17, Ent.

When I prepare a quotation in Odoo and then convert it to a Sales Order, it is given a number like 'S00502.'  This number is then also used for our analytic accounts.  If there is a change to our contract, however, we generate a new quotation/sales order but it is then given a new number, like 'S00503.'  This can get confusing since it's really the same contract and we always want to refer to the original sales order number.

I did a Google search and AI said:

" To generate a change order in Odoo, you can use the Change Order in Job Contracting and Construction module. This module allows users to create change orders, approve them, and send them to customers for signature."  I tried to find this in Apps, to no avail.  Is this the right name? (I did see a for fee application, however).

I also found " To create a "change order" in Odoo Sales, you essentially need to modify an existing sales order by opening it, making the necessary changes to the product quantities, prices, or other details, and then saving the updated order, effectively creating a new version reflecting the changes; this is done by navigating to the relevant sales order, editing the details as needed, and saving it again, as Odoo automatically tracks the changes made to a sales order."  This is not ideal because the customer/buyer would have trouble telling what is 'new.'  This AI-generated guidance also indicated " For more complex change order management, consider using a custom Odoo module specifically designed for managing change orders."  There was also a comment stating " If the sales order has already been confirmed or invoiced, you might need to take additional steps to modify it, potentially requiring the deletion of related documents like invoices before editing. 

This is for a construction business.  Any specific recommendations on the best way to proceed would be appreciated.