As a supplier, you can propose updates to a buyer’s purchase order (PO) at any time using the Accept/Propose action in SourceDay. This allows you to update key order details like quantity, cost, or delivery date - either for a single PO line or in bulk for up to 100 lines at once.
This guide covers:
Propose changes to open orders
While updating orders in SourceDay, suppliers are able to propose changes to the following order requirements:
- Quantity
- Cost
- Due Date or Ship Date
How to propose changes to individual PO Lines
Step 1: Select the PO Lines
In your dashboard, check the box next to the PO line(s) you want to update
To select all lines in your view, click the checkbox in the top row
Step 2: Click Accept/Propose
This option is in the upper right corner of the PO table
Step 3: Review the Order Details
In the proposal window, you can:
Jump to specific POs using the left-side summary or scroll
Review full order details and attachments
View the PO’s message history or previous activity under the ellipsis button next to View Purchase Order
Step 4: Select the Propose action
Click on the propose option
Note: Some actions may not be available depending on the order’s status
Step 5: Enter Your Proposed Changes
Edit the Quantity, Cost, and/or Date fields on the far right
These fields autofill with current PO values - delete and type to update
You can compare your new entries with past proposals using the Supplier Proposed column
Optional: Add a message to explain your changes - this is stored in the PO history
Optional: You may be required to select a root cause from a list of reasons
Step 6: Submit or Cancel
Click Confirm to send your changes to your buyer
Click Cancel to exit without submitting
How to propose changes in bulk
If you're applying the same updates to multiple PO lines, use Bulk Update to save time.
Step-by-Step:
Select multiple PO lines from the dashboard
Click Accept/Propose
In the proposal window, click the Bulk Update option at the top
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Choose your action — Accept, Propose, Cancel, Reject, or Undo Changes
If choosing Propose, enter the new Quantity, Cost, or Date in the bulk fields
SourceDay will apply these values to all selected lines
Add a single Message or Root Cause that will apply to all lines
Click Confirm to submit
What happens after you submit your proposal?
If the buyer accepts your changes:
The PO will automatically update in both SourceDay and your customer’s ERP system
You’ll receive an email confirmation
If the buyer rejects or counters your proposal:
The order line will not be updated
You’ll receive a notification with the buyer’s comments or counter proposal
The PO line will appear in your Buyer prosed changes view under Needs Attention
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From there, you can:
Accept the original terms
Propose new updates
Message your buyer for clarification
Tips for successful proposals
Always double-check quantities and dates before submitting
Use the Message box to provide reasoning — this improves the chances of acceptance
Check your Needs Attention view regularly to stay on top of rejections or counter offers