Update PSU Data for consents

This method update PSU data on the consents resource if needed. It may authorise a consent within the Embedded SCA Approach where needed.

Independently from the SCA Approach it supports e.g. the selection of the authentication method and a non-SCA PSU authentication.

There are several possible update PSU data requests in the context of a consent request if needed, which depends on the SCA approach:

• Redirect SCA Approach: A specific Update PSU data request is applicable for
  • the selection of authentication methods, before choosing the actual SCA approach.
• Decoupled SCA Approach: A specific update PSU data request is only applicable for
  • adding the PSU Identification, if not provided yet in the payment initiation request or the Account Information Consent Request, or if no OAuth2 access token is used, or
  • the selection of authentication methods.
• Embedded SCA Approach: The Update PSU data request might be used
  • to add credentials as a first factor authentication data of the PSU and
  • to select the authentication method and
  • transaction authorisation.

The SCA Approach might depend on the chosen SCA method. For that reason, the following possible update PSU data request can apply to all SCA approaches:

• Select an SCA method in case of several SCA methods are available for the customer.

There are the following request types on this access path:

• Update PSU identification
• Update PSU authentication
• Select PSU autorization method WARNING: This method needs a reduced header, therefore many optional elements are not present. Maybe in a later version the access path will change.
• Transaction Authorisation WARNING: This method needs a reduced header, therefore many optional elements are not present. Maybe in a later version the access path will change.