IBANs are often grouped via space characters for better readability. For use in the QR code they have to be removed (if present) in order to be standard compliant and work with all banking apps.
Something like the following could work for this (untested):
IBANs are often grouped via space characters for better readability. For use in the QR code they have to be removed (if present) in order to be standard compliant and work with all banking apps.
Something like the following could work for this (untested):