Enable Navigator API Full-Text Search ($search) on Demo Account

Hi DocuSign Community,

We are currently integrating with the DocuSign Navigator API in the demo environment and are facing an issue with the $search query parameter.

Environment:
https://api-d.docusign.com

Account ID:
6ed4aa88-5dd9-499a-bc86-d2c29ab47142

Issue:
The following request returns 403 Forbidden:

GET /v1/accounts/{accountId}/agreements?$search=sample

Response:
{
"title": "Search Failed",
"status": 403,
"detail": "The query could not be processed. Please check your filter expression."
}

What we verified:

• GET /agreements works correctly (200 OK)

• $filter parameter works correctly

• $search consistently returns 403

• Combining $search and $filter returns 400 Bad Request

Questions:

1. Does $search require additional provisioning or enablement in demo accounts?

2. Is full-text search available by default in Navigator API v1?

3. Can $search and $filter be combined together in v1?

4. Is there a different endpoint or API version required for full-text search support?

5. Does Navigator search require indexing or a specific subscription/plan?

According to the Navigator API documentation, $search should support full-text search on agreement fields such as title and type.

Any guidance would be appreciated.

Thanks