---
title: "Find serial-number items with the \"With sales order\" filter and send reminders"
description: "Use the \"With sales order\" filter to find serial-number items by their sales orders/service in a period - and send SMS or email to the customers found."
url: https://support.sapera.io/en/articles/702-find-serial-number-items-with-the-with-sales-order-filter-and-send-reminders
collection: "Serial-number items (guides)"
updated: 2026-07-13
language: en
alternates: [da]
---

# Find serial-number items with the "With sales order" filter and send reminders

Use the "With sales order" filter to find serial-number items by their sales orders/service in a period - and send SMS or email to the customers found.

On the serial-number item overview you have the **With sales order** filter - a powerful filter that finds serial-number items based on which sales orders and products are (or are not) linked to them within a given period. Combined with the ability to **send SMS or email** to the selected serial-number items, it is a strong tool for service follow-up, for example.

## What "With sales order" can filter on

-   **Period** (sales order date) - only sales orders within a date range.
    
-   **With product / Without product** - e.g. serial-number items that have \*not\* had a specific service (product).
    
-   **With product category / Without product category** - the same, but at category level.
    
-   **Sales order type** and **state** - narrow to certain order types or statuses.
    

So you can find both the serial-number items that **have had** something specific done, and those that are **missing** it.

## How to find serial-number items without a specific service

1.  Go to the serial-number item overview.
    
2.  Open the **With sales order** filter and select e.g.: period = last year, **Without product** = \[the specific service\].
    
3.  Combine with the other filters on the overview as needed (e.g. **owner**, category, stock).
    
4.  The result is the serial-number items that did not have the service performed in the period.
    

## Send a reminder to the customers found

From the overview you can send **SMS** or **email** to the selected serial-number items. You can choose the **recipient preference** - e.g. **Owner** or **User over owner** - so the message goes to the right contact.

1.  Select the serial-number items found.
    
2.  Choose **Send SMS** or **Send email**.
    
3.  Choose the recipient preference, write the message, and send.
    

**Example:** Find all serial-number items owned by a specific business customer that are **Without product** = \[a specific service\] this year, and send them a friendly reminder to book an appointment.

* * *

**Want to know more?**

Read more in these related articles:

[

Sold service: make repairs free for the customer

Sell a service agreement on a serial-number item so selected repairs/parts automatically become free for the customer - and get reminded of the next service.

](https://support.sapera.io/en/articles/701.md)[

Serial-number items

A serial-number item is a unique instance of a base product with its own serial number, barcode and registration number. The screen gives an overview of all serial-number items, the ability to create, edit, copy and delete them, as well as access to tabs for costs, financial entries, rental contracts, history, payment plans and attachments.

](https://support.sapera.io/en/articles/129.md)

## Related

- [Sold service: make repairs free for the customer](https://support.sapera.io/en/articles/701-sold-service-make-repairs-free-for-the-customer.md)
- [Video library](https://support.sapera.io/en/articles/1-video-library.md)
- [Getting started - What do you need to know as a customer?](https://support.sapera.io/en/articles/317-getting-started-what-do-you-need-to-know-as-a-customer.md)
- [Using quick filters](https://support.sapera.io/en/articles/329-using-quick-filters.md)
- [Creating a user](https://support.sapera.io/en/articles/330-creating-a-user.md)