Dear developers, as of 14/06/19 we will implement the following changes: - QSealC support: TPP must provide a valid QsealC in addition to QWAC on the sandbox and API services - TPP must be registered to their NCA to access the sandbox and our API services - we will remove the need for an access token at the PIS workflow If you have any questions about those changes please let us know.   your comdirect xs2a-support