---
page_type: error
code: 21617
message: "21617: The concatenated message body exceeds the 1600 character limit"
level: ERROR
---

## Description

The body of the message is too long.

### Possible Causes

The maximum allowable body text length is generally 1600 characters, but some special characters such as emojis, emoticons or non-GSM characters will be counted as multiple characters if they have a higher byte count.

### Possible Solutions

An online text to byte calculator can help you understand if certain characters are taking up more character space than others.