---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/21730#article
headline: "21730: System under maintenance. Please try again later."
url: https://www.twilio.com/docs/api/errors/21730
inLanguage: en
dateModified: 2026-04-20T06:45:15.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 21730: System under maintenance. Please try again later.

Log Type: TWILIO

Log Level: ERROR

## Description

This error is returned by Twilio Systems when the system is going through a scheduled maintenance. During this maintenance window some of the operations are not allowed and this error is returned.

### Possible causes

The system is going through scheduled maintenance.

### Possible solutions

Try again later because once maintenance activity is completed all requests are processed successfully.