---
title: "[Taxonomy] - Limitations for Taxonomy"
description: Limitations and constraints for using the Taxonomy feature.
url: https://www.contentstack.com/docs/developers/taxonomy/limitations-for-taxonomy
product: Contentstack
doc_type: reference
audience:
  - developers
  - administrators
version: current
last_updated: 2026-03-26
---

# [Taxonomy] - Limitations for Taxonomy

This page lists the limitations and constraints of the Taxonomy feature in Contentstack. It is intended for developers and administrators who are planning, configuring, or enforcing taxonomy usage and permissions, and should be referenced when designing content models and governance rules.

## Limitations for Taxonomy

- The taxonomy feature is plan-based and accessible exclusively with the activation of the new CDA plan. Please contact the [support](mailto:support@contentstack.com) team to get this activated for your organization.
- Taxonomy is a global module, and not specific to any branch.
- The maximum number of taxonomies allowed per stack will depend on the product tier.
- The maximum character length for a taxonomy name and UID is **50** characters.
- The maximum character length for a taxonomy description is **255** characters.
- The maximum number of terms allowed per taxonomy is **10000**.
- The maximum number of terms allowed per entry is **25**.
- The maximum depth of terms allowed is **10** levels.
- The maximum character length for a term name and UID is **50** characters.
- The taxonomy and term UIDs cannot be edited, once they are saved.
- The UID for a term is unique within a taxonomy but not unique within a stack.
- You can include and configure multiple taxonomies within a single taxonomy field in a content type. However, adding multiple taxonomy fields is not supported.
- The taxonomy field cannot be added within modular blocks or group fields.
- The UID for the taxonomy field is "taxonomies" within content types and is now a restricted keyword, which cannot be used for any other field.
- Uncategorized entries (entries not assigned any term) will not be visible to users with taxonomy-based permissions.

## Common questions

### Is Taxonomy available on all plans?
The taxonomy feature is plan-based and accessible exclusively with the activation of the new CDA plan. Please contact the [support](mailto:support@contentstack.com) team to get this activated for your organization.

### Can I change taxonomy or term UIDs after saving?
The taxonomy and term UIDs cannot be edited, once they are saved.

### Can I add more than one taxonomy field to a content type?
You can include and configure multiple taxonomies within a single taxonomy field in a content type. However, adding multiple taxonomy fields is not supported.

### Why can’t some users see uncategorized entries?
Uncategorized entries (entries not assigned any term) will not be visible to users with taxonomy-based permissions.