Shopify vets apps used on their site to ensure they meet certain usability standards. This does not ensure that other Shopify apps or third-party pps will function correctly with Lulu xPress. Prior to using any third-party apps alongside the Lulu xPress app, we strongly suggest placing a test order first to ensure the third-party app is compatible with Lulu xPress. 

If you are experiencing errors or unexpected behavior from Lulu xPress, we suggest consulting Shopify with information about all apps you use and testing Lulu xPress with all third-party apps turned off.