---
title: Compare revisions of a proposal
summary: See how one proposal changed from revision to revision. Check the validity, delivery date, credit period, net amount and the rate of each BOQ item.
order: 2
menu: Contracts > Proposals
route: /proposals/comparative
who: People who have the View Proposals permission.
---

A contractor can change a proposal after sending it, for example after you ask for a better price. You can also change a proposal that you entered by hand. Each change keeps the earlier version as a revision. The screen **Revision - Comparative** puts the revisions of one proposal in columns, so you see what moved.

This screen compares revisions of one contractor. To compare different contractors on one RFP, use [Compare the proposals of an RFP](../rfp/compare-proposals.md).

## Before you start

The proposal must have at least one revision. If it has none, the screen shows "This proposal has no revisions to compare."

## How to open the comparison

1. Open **Contracts > Proposals**.
2. Show the **Rev** column if you want to see the revision numbers. Use **Select Column** at the bottom left.
3. Find a proposal that has revisions.
4. Click the **Compare Revisions** icon in the **Actions** column.

## How to read the table

The first column is **Parameter**. Then there is one column for each revision: **Revision 0**, **Revision 1** and so on. For a proposal that is **Negotiating**, **Submitted**, **Awarded** or **Awarded to other**, the last column is the current state.

The table has two parts:

- **Bid Details**: **Validity**, **Delivery Date**, **Credit Period**, **Payment Terms** and **Net Amount**.
- **Pricing Details**: one row for each BOQ item, with its category, quantity, unit and specifications. Each cell shows the rate and the net amount for that revision.

Next to a value, a small red or green arrow shows the change from the revision before it. For the dates and the credit period, the change is in days (d). For the net amount and the rates, it is in percent. Read the number, and do not rely on the colour alone.

A BOQ item that a revision did not quote shows a dash.

## How to save the comparison

Click **Export to Excel**. The system saves the table as an Excel file.

## If something goes wrong

| What you see | What to do |
| --- | --- |
| "This proposal has no revisions to compare." | The proposal was never changed after it was submitted. There is nothing to compare. |
| The **Compare Revisions** icon is missing | The proposal has no revisions. |
| **Export to Excel** is grey | The table is still loading, or it is empty. |

## Related pages

- [Proposals](index.md)
- [Enter or change a proposal](create-proposal.md)
- [Compare the proposals of an RFP](../rfp/compare-proposals.md)