Booked a business flight from LHR-HEL in a few days.
Crediting to my new base Finnair account (rather than my BA OWE), so have to pay for everything.

Don't really want to pay £56+ for a seat on the A350 that's pretty much a window or middle aisle anyway.

Did have a glance at the seat selection option in the app earlier and 2 seats were available.
Just now, all greyed out, so no choice. The price under the "seat selection" option has vanished, yet other services still for sale.

Hopefully no issues getting a seat assigned at check-in when that opens tomorrow. Never actually not chosen a seat at the time of booking before.
Any chance of overselling that cabin?

Not sure if just a system thing or if AY stop selling seats and assign 2-3 days out.
BA do occasionally give no selection option, but options appear at check-in.