---
title: Why do my recipients see a sender ID that is different from the one I’ve set?
description: Has the SMS sender, Sender ID or OADC been altered for your recipients? In France, special characters (spaces, accents, punctuation) are removed from the sender’s name, or replaced by a short number.
---

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# Why do my recipients see a sender ID that is different from the one I’ve set?

## Spaces or accents removed, name replaced by a short number: in France, special characters are not permitted in the sender ID of text messages.

Does your sender ID, also known as OADC or sender name, appear differently on your recipients’ phones?

Since 12/10/26, for any SMS sent to a French number, smsmode© automatically corrects your customised sender ID. Spaces, punctuation and symbols are removed. Accented letters are replaced by their unaccented equivalents (e.g. ‘é’ becomes ‘e’).

Your SMS is sent and delivered correctly. Only the name displayed to your recipients changes.

| **Sender as configured** | **Sender as received by your recipients** |
| --- | --- |
| Pizza & Co | PizzaCo |
| Le-Fournil | LeFournil |
| Café Paris | CafeParis |
| 06.12.34 | a short code like: 36033 |

### Why this change?

The af2m Business Messaging Charter has applied to all SMS senders in France since 1 March 2026. By default, it prohibits the use of special characters in the sender’s details. The aim is to combat SMS fraud and brand impersonation.

A non-compliant sender ID puts your messages at risk of being blocked by operators. By correcting the sender ID before sending, smsmode guarantees the delivery and compliance of your SMS messages.

### Who is affected?

All SMS messages sent to French numbers with a custom sender field containing at least one special character (for which no exemption has been requested), regardless of the sending method: platform, API or integrations.

The following are not affected: international messages, sender details that are already compliant, and RCS messages, which use your verified agent rather than a text sender.

### Why is my name being replaced by a short number?

Sometimes, once the special characters have been removed, your sender name is empty or contains only numbers. It cannot then be used: a sender name consisting solely of numbers is also prohibited in France. In this case, your text messages are sent from a short number such as 36033. To restore your name, amend your sender ID in accordance with the rules below.

### What’s changing, what isn’t

- ✅ Your text message is sent as normal, without you having to do anything.
- ✅ Your message history, both on the platform and via the API, will still show the sender as you entered it. This is normal: the history retains your settings; the correction is applied at the time of sending.
- ✅ Billing remains unchanged.
- ⚠️ Your recipients will see the corrected sender details, or a short number.

 

### What should you do?

Recommended: ensure your sender IDs comply with the guidelines. This ensures that what you see in your history matches exactly what your recipients receive. A compliant sender ID:

- contains only unaccented letters (A to Z) and numbers (0 to 9);
- is no more than 11 characters long;
- does not consist solely of numbers;
- clearly identifies your brand.
- To change it: https://ui.smsmode.com/settings/senders
- or the ‘sender’ field in your API requests.

### Is a special character essential to your brand?

smsmode© can submit an authorisation request (ISA, ‘Prohibited Unless Authorised’) on your behalf to the mobile network operators. Authorisation is subject to their approval. Contact our sales team at [sales@smsmode.com](mailto:sales@smsmode.com) or on +44 20 3514 2545 → \[[https://support.smsmode.com/en/base-de-connaissance/how-to-obtain-a-loa-letter-of-authorization-for-your-sender-ids-in-isa-forbiden-except-with-an-authorisation](https://support.smsmode.com/en/base-de-connaissance/how-to-obtain-a-loa-letter-of-authorization-for-your-sender-ids-in-isa-forbiden-except-with-an-authorisation?hsLang=en)\]

 

Good to know: other rules regarding senders in France : 

Special characters are not the only restriction. Certain senders are strictly prohibited, for example those that impersonate operators or government bodies. Others are prohibited unless authorised: brands, banks and institutions. → \[[https://support.smsmode.com/en/base-de-connaissance/conformit%C3%A9-des-senderid-ou-oadc-en-france](https://support.smsmode.com/en/base-de-connaissance/conformit%C3%A9-des-senderid-ou-oadc-en-france)\]

 

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