When a Payer DFSP receives a request to pay for a Payer and that has their account linked to a PISP provider, the DFSP may choose to use the PISP authorization flow to get authorization from the user for the payment.

Here the PISP has linked their account with a scope that permits the sending of a request to pay request to their DFSP. The Payee DFSP receives this request, validates, and then initiates a request to pay for payment into their linked account. This sequence diagram build on the previous diagram.

Account linking require three stages of authorizing.
- Permission to release account information to PISP
- Permission to link account with defined scope
- Configuration of the credential to be used to authorize payment.
The Payer can revoke consent either through the PISP or through the their DFSP. Authorisation of this revoke request is is managed by the institution prior to a DELETE or PATCH call is made to Mojaloop.


