---
title: "Environment Limitations"
description: "Understand the limitations of environments to ensure seamless content publishing across different deployment channels."
url: "https://www.contentstack.com/docs/headless-cms/environment-limitations"
product: "Contentstack"
doc_type: "guide"
audience:
  - developers
  - admins
version: "current"
last_updated: "2026-07-22"
---

# Environment Limitations

*   Environment names cannot use the following special characters: #%^+\\/?\\\*:|"'<>\\s{}=,
*   Environment names cannot contain spaces.
*   Environment names should **not exceed 255 characters** and cannot contain capital letters.
*   Environments are stack-specific and cannot be shared between stacks.
*   Once an environment is deleted, it cannot be restored.
*   Any published content in the deleted environment remains in Contentstack but becomes inaccessible via that environment.
*   [Delivery tokens](/docs/headless-cms/about-delivery-tokens) associated with the deleted environment become invalid, preventing API-based content retrieval.