---
page_type: error
code: 50529
message: "50529: Content variables are too long"
level: ERROR
product: Conversations
---

## Description

Allowed total length for message content variables is sum of key, value and JSON-specific characters' lengths.

### Possible Causes

Either too many variables are defined (max 100 in total), or too long keys (max 16 characters per variable), or too long values (max 256 characters per variable).

### Possible Solutions

Follow the length limitations:

- variables: 100 in total;
- key: 16 characters per variable;
- value: 256 characters per variable.