> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cognite.com/llms.txt
> Use this file to discover all available pages before exploring further.

# ContainerPropertyCountIsOutOfLimits validation rule

> Validates that containers do not exceed the maximum number of properties allowed by CDF. Ensures optimal performance and deployment success.

This rule checks that each container has no more properties than the CDF limit allows.

## Why it matters

CDF enforces limits on the number of properties per container to ensure optimal performance
and prevent PostgreSQL tables that have too many columns.

## Example

If a container has 150 properties and the CDF limit is 100 properties per container,
this validator will raise a `ConsistencyError` issue.

## Further reading

* [Validation rules](/cdf/deploy/neat/validation/index)