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

# Update a benefit event

> Adjust an enrollment window.

Move the enrollment window or update metadata. An open-enrollment window is
commonly extended this way. The event's identity — its type, point date, and
who it's for — is fixed at creation; to change those, create a new event.

### Parameters

<ParamField path="id" type="string" required>
  ID of the benefit event.
</ParamField>

<ParamField body="starts" type="string">
  First day the enrollment window is open.
</ParamField>

<ParamField body="ends" type="string">
  Last day the enrollment window is open.
</ParamField>

<ParamField body="metadata" type="object">
  Set of key-value pairs attached to the event.
</ParamField>

### Returns

Returns the updated [Benefit event object](/reference/benefit-events/object).