A question was asked how to retrieve results for all candidates that do not have a blank or null background check completed date. This example displays retrieving results with a filter of "as of today"

Call Type: POST
URL: https://api.icims.com/customers/6271/search/people
Payload:
{"filters":[{"name":"person.collectionfield3256date","secondaryValue":["{DATE:END}"],"value":[],"operator":"="}],"operator":"&"}