Missing door lock "faceplate" part

A home owner from Los Angeles says:
I am not sure of the name of this part. But the piece that the door hooks cling onto in order to lock the door is missing from one of my sliding doors. The first picture shows what the piece looks like on a different door. Any help to buy a replacement would be greatly appreciated!
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Lauren from SWISCO responded:

Hello, thank you for posting,

The strike plate in the first picture resembles the 89-042 along with the 89-043 cover. If the other door uses the same lock style, please review the dimensions of this strike plate to determine a good fit! Let us know if you have any additional questions! 

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