To retrieve passenger details for MCP reservation, the dcci /passenger/details service uses both the types of record locators: IAP and MCP. 

The passenger/agent can provide any of the IAP record locators or the MCP record locator information to retrieve the reservation details. And, this information will include all the details in reference to context with the MCP partition, as it serves as the main partition.

In some cases, for more advanced operations, the POS must have access to passenger's and segments' identifiers, in context with both IAP and MCP partitions. 

Digital Connect Check-In supports the new service /passenger/details/basic and uses IAP or MCP record locator to retrieve passengers and segments with reference to MCP partition and all IAP partitions.

Search by FOID  - Enhancement

Return FOID in /passenger/details Response

The passenger/details will allow you to search reservation using different criteria and one among them is FOID.
FOID is included as part of  the retrieved results and this helps locate the details of the passenger  who requested for the document.
This functionality will work whenever the /passenger/details response is returned. And, both unique and non-unique lookup is supported.

Configuration Reference

The following key is introduced to support this feature:

• s4ci.feature.passengerDetails.requestedSearchCriteria.enabled

For more details refer to the Configuration Index chapter.