The bank does not provide the photoTAN-push procedure for accounts that are transmitted via the HBCI / FinTS interface. Current accounts and transfers, for example, run via this interface.
The photoTAN-push use is therefore only possible for accounts that are read directly from the website via screen scraping, e.g. the credit cards.
As long as the bank does not release the procedure for the HBCI / FinTS interface, it cannot be used in Outbank.