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I’m installing an extension to enable Store Pickup as a shipping option. I’m instructed to extract the App folder and upload it via FTP into my Magento directory. My Magento directory already has an app folder. Will uploading this overwrite the other files in the app folder? Just don’t want to screw up my site.
If this extension does not require any SQL rework then I would just backup that app folder first before you overwright it. The easiest way would be to use FTP, select that app folder and download it to your computer. If your hosting provider provides cPanel you can back it up using their internal software also. Good Luck!
don’t worry about overwriting the app-folder (but back it up just in case ). underneath the app folder you’ll find a lot of different separate modules in a well structured directory-hierachie. each new module takes a new special place in the following scheme: app/code/local/ COMPANYNAME / MODULENAME - so there is a clean way how everything is separated.