IBAN == bank account number with the bank info baked in, although I think for foreign transfers you might still have to provide the bank code separately.

I've never been asked for an address when doing a wire transfer.

From what I've heard banks stopped validating the name field a long time ago and you can enter whatever you want.

My Finnish bank has always (10+ years) asked for the full recipient address when I've entered a foreign IBAN (even within EU). Just tested that it still does.

I don't think they validate it, though, IIRC I've gotten away with simply putting in "Germany".

Did you use "foreign payment" or just pay as if it were a domestic payment?

I don't remember seeing issues in SEPA area, if I just use the IBAN and pay like any normal payment. If I am specifically doing a "foreign payment" some extra fields need to be filled in. That is how I recall the process, last time was 1 year ago though.

No, I used the normal "domestic" payment form. It detects a foreign IBAN and then dynamically adds the extra mandatory address fields on the page.

Here in NL, the name field recently has gotten even stronger validation. I think this coincided with a system where minor spelling mistakes are corrected by a suggested "Did you mean ...?"

I suppose that would be because of EU regulations against money laundering.

Definitely not, because a few of my banks allow it without a problem.

Same here, I did a bunch of SEPA transfers between two EU countries last year, and all they asked was for the IBAN.