@Bauke **********
the system allows for correction until you submit.
You can take as long as you want to check, recheck, double-check and so on.
If you want even the next day, and you can correct anything you want.
The IT system gives all the possibilities to correct input errors, but after submitting the correction possibilities stop, just like with almost all other IT systems.
When you do a bank transfer, you can also correct until the moment you submit, then changing becomes impossible.
When you buy a flight ticket and misspelled your name, it cannot be changed for free after submitting.
Apart from allowing to enter personal data before the passport scan, I think the IT system is OK.