Both patio doors need the receiving part of the lock. I included pics of the door latch to give you a better idea of what is needed. Both patio doors are missing these parts. Both broke. Looks to be about 3 inches from mid screws.
Tom from SWISCO responded:
March 30, 2019
Looks like you need a new keeper. This looks like our 89-021. Check it out and let me know what you think.