The other party modified and sent back the document. How do I decide which changes to accept item by item?

Use 'Diff View & Sync' (called 'Diff View' on quotations and inquiries). When there are pending changes to sync on an order details page, it opens automatically upon entering the page. For quotations and inquiries, a button appears when the other party has new changes. The left side shows 'The other party's sent version (read-only)', which is a snapshot at the moment they clicked send. The right side is your copy. The 'Change Summary' at the top lists how many items the other party changed and the total amount adjustment. Each line allows you to 'Use the other party's value' or 'Revert to the original value'. For line items, you can 'Accept entire item from other party'. For items the other party added or deleted, you can 'Accept addition' or 'Accept deletion'. Each section can also 'Accept entire section from other party'. When needed, click 'Batch Reprice' to recalculate unit prices. When adopting the other party's currency or trading conditions, a repricing dialog automatically appears. Once you've decided, click 'Send'. The system writes your adopted content into your copy and sends it to the other party. Changes in the dialog won't be written until you click send. Before sending, you can review the changes in the dialog.