Blank card is added to wallet, tested with add to wallet test tool

I am currently working on integrating the Samsung Wallet feature into my Android application. I’ve successfully registered through the Samsung Partner Portal, created an account, and uploaded the necessary certificates. I created Wallet card of the Generic Card type and launched it, the status of the card is Active now.

While testing with the “Add to Samsung Wallet” tool, the cards are successfully added to the wallet, but they appear blank—no data is displayed on the card. Despite multiple attempts, I haven’t been able to resolve this issue.

Test JSON used for testing:

{
    "card": {
        "type": "generic",
        "subType": "others",
        "data": [
            {
                "createdAt": 1661745824345,
                "updatedAt": 1661745824345,
                "language": "ko",
                "refId": "380e01c0-620a-49a9-aa34-5c34aae9e0fc",
                "attributes": {
                    "type": "generic",
                    "subType": "insurance",
                    "title": “Castlight generic card”,
                    "subtitle": " Generic Card",
                    "providerName": “Cas”light Health,
                    "startDate": 1753074530730,
                    "startDate.utcOffset": "UTC+9,
                    "endDate": 1753374530730,
                    "endDate.utcOffset": "UTC+9",
                    "text1": "Test",
                    "text2": "Ashok",	
                    "text3": "N",
                    "text4": "Android Developer",
                    "text5": "123456789",
                    "text6": "031)000-1235",
                    "text7": "7907241942",
                    "text9": "Test Address",
		    "bgColor": "#0000FF",
		    "fontColor": "dark",
                    "mainImg": "https://cdn.castlighthealth.com/image/upload/v1751609951/assets/wallet-logos/cslt.png",  
                    "noticeDesc": {
                        "count": 1,
                        "info": [
                            {
                                "title": "Notice Title",
                                "content": [
                                    "Notice for Wallet Card"
                                ]
                            }
                        ]
                    },
                    "appLinkData": "https://www.castlighthealth.com/",
                    "appLinkLogo": "https://cdn.castlighthealth.com/image/upload/v1751609951/assets/wallet-logos/cslt.png",
                    "appLinkName": "Castlight"
                }
            }
        ]
    }
}

Has anyone encountered a similar problem or can offer guidance on how to resolve it?

Not familiar with wallet test tool, but I see some things in your json:

"title": “Castlight generic card”,
Uses curly quotes instead of straight. Not sure if makes a difference (try "title": "Castlight generic card",)

"providerName": “Cas”light Health,
Uses curly quotes and entire value is not inside of quotes (try "providerName": "Caslight Health",)

"startDate.utcOffset": "UTC+9,
Missing end quote (try "startDate.utcOffset": "UTC+9",)

Thanks for your suggestion. I made the changes to the JSON and tested it, but I’m still not seeing the data on the card. Interestingly, I noticed that when I change the bgColor, the background color is successfully applied to the card — but the text itself still isn’t showing up. It seems like the text is not rendering correctly on the card.

JSON:

{
    "card": {
        "type": "generic",
        "subType": "others",
        "data": [
            {
                "createdAt": 1661745824345,
                "updatedAt": 1661745824345,
                "language": “en”,
                "refId": "380e01c0-620a-49a9-aa34-5c34aae9e0fc",
                "attributes": {
                    "type": "generic",
                    "subType": "insurance",
                    "title": "Castlight generic card",
                    "subtitle": " Generic Card",
                    "providerName": "Castlight Health",
                    "startDate": 1753074530730,
                    "startDate.utcOffset": "UTC+9",
                    "endDate": 1753374530730,
                    "endDate.utcOffset": "UTC+9",
                    "text1": "Test",
                    "text2": "Ashok",	
                    "text3": "N",
                    "text4": "Android Developer",
                    "text5": "123456789",
                    "text6": "031)000-1235",
                    "text7": "7907241942",
                    "text9": "Test Address",
		    "bgColor": "#0000FF",
		    "fontColor": "dark",
                    "mainImg": "https://cdn.castlighthealth.com/image/upload/v1751609951/assets/wallet-logos/cslt.png",  
                    "noticeDesc": {
                        "count": 1,
                        "info": [
                            {
                                "title": "Notice Title",
                                "content": [
                                    "Notice for Wallet Card"
                                ]
                            }
                        ]
                    },
                    "appLinkData": "https://www.castlighthealth.com/",
                    "appLinkLogo": "https://cdn.castlighthealth.com/image/upload/v1751609951/assets/wallet-logos/cslt.png",
                    "appLinkName": "Castlight"
                }
            }
        ]
    }
}