Why Can't I Submit Another Invoice After Changing the Unit Price?

What Is the Problem?

You are entering an invoice. The unit price is different from what is on the Purchase Order. You submit the form and see this error:

"An invoice with adjusted price already exists in the workflow."

You cannot submit another invoice. This is not a bug. It is how the system is designed to work.

What Is the Invoice Item Price Adjustment Setting?

This setting controls how your organization handles unit price changes on invoices.

It is found in:
Payments > Data Management > Invoice Item Price Adjustment Configuration

Any user with the correct permissions can update this setting. It applies to all vendors in your system.

What Does This Setting Do?

When an invoice comes in with a price that is different from the Purchase Order, the system needs to know what to do.

This setting gives you two options:

Option 1: Lower Prices Only
The system will allow a unit price change only if the new price is lower than what is on the Purchase Order. If the price is higher, the user must complete a change order manually first.

Option 2: Lower and Higher Prices
The system will allow unit price changes in both directions. The price can be lower or higher than what is on the Purchase Order.

What Happens When a Price Change Is Allowed?

When you submit an invoice with an adjusted price, two things happen automatically:

• The invoice enters the approval workflow
• The system generates a change order to update the unit price on the Purchase Order

You do not have to create the change order yourself. The system does it for you.

What If Price Adjustment Is Turned Off?

If your organization has this setting turned off, the system will not allow a price that differs from the Purchase Order.

In that case, you must complete a manual change order first. Once the change order is approved, you can submit the invoice with the new price.

Why Is the Error Appearing?

There is one rule that applies when price adjustment is turned on.

Only one invoice with a price change can be in the workflow at a time. This applies to all vendors. If a previous invoice with an adjusted price has not been completed yet, the system will block the next one.

This is expected behavior. It protects your records and keeps the Purchase Order accurate.

What Do I Do?

Wait for the current invoice to complete the full approval workflow. Once it is marked as Completed:

• The unit price on the Purchase Order updates automatically
• You can submit your next invoice with the adjusted price

There is no way to skip this step.

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