Can you replace the SSD in a 2019 MacBook Pro?

No, the SSD cannot be upgraded because the 2019 MacBook Pro has a soldered down SSD. You would need change out the entire logic board and that would be very costly just to get a SSD upgrade.

Axel F.

No. The last MBP with a slotted SSD was on 2015. Since then the SSD has been soldered to and integral with the logic board, just like the RAM.