Problem

When opening the SmartObject OData Endpoint from the browser, a 404 error is returned.

This SmartObject is already selected as one of the SmartObjects to expose through the OData API. This is verified from both K2 Management and also the metadata returned when opening this URL from the browser: https://{K2 Site URL}/api/odatav4/v4/.

Solution

On the metadata, the SmartObject system name is shown in plural form:eg. 'Quote' is shown as 'Quotes'

You will need to use the URL that has the letter 'S' appended:eg. https://k2test.company.com/api/odatav4/v4/Quotes