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

# Update an Individual Collection

> Replaces the field values on an existing instance of the custom collection on the individual. Fields left out of the request are cleared, so send the full set of values you want to keep.



## API Specification

The full API specification for this endpoint is available in the [documentation index](https://docs.virtuous.org/llms.txt).