---
title: "How do I get a higher concurrency or rate limit for my Catalyst project before a launch or a large event?"
url: https://docs.catalyst.zoho.com/en/faq/general/raise-concurrency-or-rate-limit/
description: "Contact Catalyst support as early as you can before the event, because limit increases are reviewed case by case. Some limits, such as the AppSail instance …"
last_updated: 2026-11-13T05:00:22Z
service: All Services
type: faq
---

Contact Catalyst support as early as you can before the event, because limit increases are reviewed case by case. Some limits, such as the AppSail instance count and concurrent requests per instance, are documented as increasable on request. To avoid a back-and-forth, include in your first request:

1. Your project ID, the environment (Development or Production) and the data center.
2. The component and the exact error, for example 'Concurrency limit reached for the feature FUNCTIONS', 'Concurrency limit reached for the feature APP_COMPUTE' or 'Number of API requests exceeded the threshold limit'.
3. Your expected peak, as simultaneous requests or requests per minute, the expected requests per day, and the payload size.
4. The event date and how long the peak lasts.
5. A short description of your use case and architecture, and the results of any load test.

Support reviews the request and tells you which limit it can set for your project.

Note: Until an increase is confirmed, design for the current limit: shorten executions, batch requests and retry refused requests with a growing delay.

Refer to the [AppSail Basics help page](https://docs.catalyst.zoho.com/en/serverless/help/appsail/appsail-basics/) for details.