#Other Configuration Options

#Expiration Time

Expiration time for the verification session can be set in two ways:

• expirationDuration: ISO-8601 duration - The duration of the verification session.
• expirationDate: ISO-8601 date - The date of the verification session (takes precedence over expirationDuration if both are set)

These can be set in the core_flow when creating a new verification session, like so:

{
  "flow_type": "cross_device",
  "core_flow": {
    "dcql_query": { ... },
    "policies": { ... },
    "expirationDuration": "PT1H",
    "expirationDate": "2026-05-08T12:00:00Z"
  }
}