Lightspeed Retail (X-Series) POS: How do I add a customer to a completed transaction? 

How do I add a customer to a completed transaction in Lightspeed Retail (X-Series) POS?

Add a customer to a completed Lightspeed sale to earn Marsello points.

October 7, 2025

In your Lightspeed Retail (X-Series) POS dashboard

1. From the side navigation menu, Click Sell > Sales History

2. Find the customer's order, then click on the toggle arrow to open the order details.

3. Click Edit

4. Under Details, next to the Customer's name, search for them by name or email address and click on their profile to add them to the sale.

5. Click Save changes. The customer will now appear in the order's details in Lightspeed Retail (X-Series) POS and they will earn loyalty points for the sale.

📝 Note: This can take up to 15 minutes to sync across to Marsello.

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