---
title: "Field Limitations"
description: "Learn about Contentstack field limitations, including limits for content types, global fields, modular blocks, select fields, and visibility rules."
url: "https://www.contentstack.com/docs/headless-cms/field-limitations"
product: "Contentstack"
doc_type: "guide"
audience:
  - developers
  - admins
version: "current"
last_updated: "2026-06-23"
---

# Field Limitations

This table lists the default field limitations in Contentstack.

**Field**

**Unit of Measure**

**Default Limitations**

**Total Fields**

Maximum fields per content type

**400**

**Title** field and **Display Name** property

Maximum character length

**200**

**Select**

Maximum number of options

**100**

Maximum character length of a single-value option

**100**

Maximum character length of a key-value pair option

**100** characters for key and **100** characters for value

**Group**

Maximum level of nesting

**5**

Maximum number of fields (including nested fields)

**100**

**Modular Blocks**

Maximum number of Modular Blocks fields per content type

**5**

Maximum number of fields in a Modular Block

Depends on the total fields used in the content type.  
**Note:** The total number of fields in a content type (including fields inside Modular Blocks) is **100**.

Maximum number of block schema definitions per Modular Blocks field

**100**

Maximum number of block instances per Modular Blocks field in an entry

**100**

Maximum level of nested blocks

**3**

**Field Visibility Rules**

Maximum rules per content type

**10**

Maximum conditions per rule

**5**

Maximum target fields per rule

**5**

**Custom Fields**

Maximum custom fields per content type

**10**

**Global Fields**

Maximum global fields per organization

**1000**

Maximum global fields referenced in a content type

**25**

Maximum fields within a global field

**100**

Maximum level of nesting

**5**