Looking for a striker plate to accomodate the sliding door lock

Good afternoon. I'm wanting to add a striker plate to accommodate my existing sliding door lock. (apparently the original owners of the house had removed them and replaced with a doggie door that slides into the track. Either way. I don't have the striker plate to actually "Lock" this door now. Do I need to replace the whole set? If so, let me know I'd like to do business with your company. (the current strike plate I had ordered from you didn't work as I thought it would, didn't realize it would be too small. Not your fault, purely mine as I should have measured instead of assume it was a universal size.

82-249?