Facing the same issue. The other problem here is that universal link keeps working one some devices, and not working on another with the same app version installed. Unfortunately can't share the specific OS versions Tried few different formats: Based on the old one from here: https://developer.apple.com/library/archive/documentation/General/Conceptual/AppSearch/UniversalLinks.html#//apple_ref/doc/uid/TP40016308-CH12-SW1 { 	"applinks": { 		"apps": [], 		"details": [ 			{ 				"appID": "9JA89QQLNQ.com.myapp.id", 				"paths": [ 					"/launch", 					"/help" 				] 			} 		] 	} } 2. Based on the new one from here: https://developer.apple.com/documentation/safariservices/supporting_associated_domains?preferredLanguage=occ { 	"applinks": { 			"details": [ 					 { 						 "appIDs": [ "9JA89QQLNQ.com.myapp.id" ], 						 "components": [ 							 { 									"/": "/launch", 									"comment": "Launch the app" 							 }, 							 { 									"/": "help", 									"comment": "Open help" 							 } 						 ] 					 } 			 ] 	 } } In both cases used real app id with correct case sensitive formatting (not from the exmaple). In both cases validation tool https://search.developer.apple.com/appsearch-validation-tool display next information: Status: Action required. Could not extract required information for application links. Learn how to implement the recommended Universal Links. Extracted Data : Error cannot parse app site association