---
title: Updating Open Invoices to FISPAN Payments (Workday)
slug: citizens/updating-open-invoices-to-fispan-payments-workday
createdAt: 2026-11-02T15:10:53.542Z
---

Changing a supplier does not change Invoices that already exist. Use **Mass Change Approved Supplier Invoices** to switch approved, unpaid Invoices to FISPAN Payments without sending them back through approval. AP administrators can usually be granted access to this task (Process:** Supplier Invoice - Mass Action** domain).

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### Open the Task

Search the task **Mass Change Approved Supplier Invoices**.
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### Find the Invoices

Filter for the Invoices to update (for example, by **Supplier** or **Company**). Each result shows its current Payment Type.
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### Select the Invoices

Select the Invoices to update, or select all.
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### Start the Mass Update

Click **Mass Update**.
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### Set the Override Payment Type

Under **Non-Financial fields eligible to update**, set **Override Payment Type** to **FISPAN Payments**. Leave all other fields blank.
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### Review the Invoice List

In the Invoice list below, confirm each Invoice's **Override Payment Type** now shows FISPAN Payments. The rows update automatically from the field above.
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### Confirm and Submit

Check **Confirm** and submit. Confirm is required; without it, Workday shows "*The field Confirm is required and must have a value.*"
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### Verify the Supplier Invoices

Open an updated Invoice and confirm **Override Payment Type** shows **FISPAN Payments** and **Status** is still **Approved**.

This task only updates **approved, unpaid** Invoices. Draft or in-progress Invoices must be edited individually or approved first.
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