---
title: What happens when a customer or vendor is merged in Xero?
description: When a customer or vendor is merged in Xero, Peakflo will automatically detect the merge and move all related documents to the new (active) customer/vendor.
---
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# What happens when a customer or vendor is merged in Xero?
When a customer or vendor is merged in Xero, Peakflo will automatically detect the merge and move all related documents to the new (active) customer/vendor. This includes:
1. Reassign all Invoices (AR) from the old customer to the new one
2. Reassign all payments
3. Reassign all credit notes (AP and AR)
4. Reassign all Bills (AP) from the old customer to the new one
After moving everything, Peakflo will also mark the old customer/vendor as archived.
You will also see timeline notes added automatically on the new customer/ vendor.
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