ClientMailingAddressChessUpdate

Starts the CHESS-coupled client (domestic facility) mailing address change — the same operation TPP Client desktop performs via Registration Update Request with "Update Client Mailing Address" = Yes. The client's postal address is only applied after ASX authorises the change (MT220 UpdateReason A).

Name	Description	Type	Additional information
MailingAddress	New structured mailing address for the facility	ClientChessMailingAddress	Required
RegistrationDetailsStrategy	How the CHESS registration details (MT203 B59) are produced. Only RebuildFromMailingAndExistingName is supported (default when omitted).	string	None.
RegistrationDetails	Caller-supplied registration detail lines. Not supported in v1 — must be omitted.	Collection of string	None.
UpdatePersonMailingAddress	Also update account holders' person mailing addresses. Not supported in v1 — must be false.	boolean	None.
UpdatePersonResidentialAddress	Also update account holders' person residential addresses. Not supported in v1 — must be false.	boolean	None.
CorrelationId	Workflow correlation id; echoed on the response and recorded on the CHESS task	string	String length: inclusive between 0 and 100
ActorPersonID	Initiating person id; used as the task creator and client diary actor	integer	None.
InitiatedVia	Initiation source (e.g. "Self Service"); recorded on the CHESS task and repeated in the client diary and audit trail entries written when ASX applies or rejects the change	string	String length: inclusive between 0 and 50
MfaChannel	MFA channel used for the step-up challenge (e.g. "SMS", "TOTP"); optional	string	String length: inclusive between 0 and 30