> ## Documentation Index > Fetch the complete documentation index at: https://docs.upflow.io/llms.txt > Use this file to discover all available pages before exploring further. # SMS Reminders: customize the sender name > Replace the default Upflow sender with your own company name on SMS reminders so customers instantly recognize who's contacting them and trust your messages. ## Introduction By default, SMS reminders sent from Upflow appear from **"Upflow"**. Because your customers may not recognize that name, they might ignore the message or report it as spam — reducing the impact of your SMS reminders. To make your reminders instantly recognizable, you can replace the default sender with your own company name. ## Set your sender name 1. Go to [**Settings → SMS**](https://app.upflow.io/organization/-/settings/sms). 2. In the **Sender name** field, enter the name you want your customers to see. SMS settings page with the Sender name field filled in 3. Click **Save**. Your new sender name applies to all SMS reminders sent from that point on. ## Naming rules Sender names follow constraints set by mobile carriers. Your sender name must be: * Up to **11 characters** long * Made up of **letters** (A–Z, a–z), **digits** (0–9), and **spaces** only — no accents, punctuation, or other special characters ## Countries that don't support custom sender names Some countries — for example the **US** and **Canada** — don't allow custom sender names. When your SMS recipient is in one of these countries, your reminder is sent from an Upflow phone number instead of your company name. Tooltip explaining that a phone number is used for countries that don't allow custom sender names ## Related articles * [SMS Reminders overview](/en-us/collection-and-collaboration/sms/sms-reminders-overview) * [SMS Reminders: pricing](/en-us/collection-and-collaboration/sms/sms-reminders-pricing)