This field shall indicate the index of the specific credential used to authorize the lock operation in the list of credentials identified by CredentialType (e.g. PIN, RFID, etc.). This field shall be set to 0 if CredentialType is ProgrammingPIN or does not correspond to a list that can be indexed into.
This field shall indicate the credential field used to authorize the lock operation.
This struct shall indicate the credential types and their corresponding indices (if any) for the event or user record.
See
MatterSpecification.v13.Cluster § 5.2.6.26