Skip to main content

SDKs

Get help with your SDK implementation.

  • 2,008 Posts
  • 6,155 Replies

Important (2)

  • Should I post here or contact RevenueCat Support?

    Article by
    cody
    cody

  • What should I include when asking a question?

    Article by
    cody
    cody
2004 Posts
cody
RevenueCat Staff
codyRevenueCat Staff
posted in SDKs
iOS 'Receipt is invalid' Megathread

If you’re here, it’s probably because you’ve encountered an active issue related to Apple’s receipt verification. RevenueCat relies upon Apple’s `verifyReceipt` endpoint which is currently facing an outage: https://developer.apple.com/system-status/ This seems to be affecting sandbox and TestFlight purchases only at this time, although Apple’s status page doesn’t mention it explicitly. Encountering this issue? Post below ⬇️ RevenueCat isn’t able to resolve this at this time from our end, but it may help bring awareness and ease to other developers facing the same issue. Update 2/8/23 19:20 UTC: Customers (and me 😃) reporting things are working as expected again - post below if you’re still having trouble, seems like a slow rollout of a fix from Apple. Update 2/8/23 17:40 UTC: Apple’s reporting the issue is fixed, but we’re still encountering errors. Will provide another update as soon as possible.

420054
H
RevenueCat Staff
Andy
RevenueCat Staff
AndyRevenueCat Staff
posted in SDKs
React-Native / Expo Go: How to solve `TypeError: null is not an object (evaluating 'RNPurchases.setupPurchases')`

Expo Go doesn’t build native modules, so you may run into this error while trying to run your app with react-native-purchases in Expo Go. In order to use RevenueCat with Expo, you will have to create Development Builds, which can be done either by using EAS, or by making builds that are compatible with Xcode and Android Studio. There are detailed instructions for doing either one in this page: https://docs.expo.dev/development/build/ Easiest way to be able to debug is to just run either of the following: npx expo run:android -d npx expo run:ios -d We also have a blog post that goes step-by-step into how to make an app with Expo and RevenueCat using EAS: https://www.revenuecat.com/blog/in-app-puchase-expo-managed-workflow/ Let us know if you run into any issues!

35347
P
Andy
RevenueCat Staff
AndyRevenueCat Staff
posted in SDKs
Help wanted: StoreKit 2 beta testing

Hi! 👋🏻 We’re in the final stages of our testing of some StoreKit 2 features before fully calling it ready for production, and we’d love your help! Context: Starting with v4.0.0, our SDK already uses StoreKit 2 by default on compatible devices for some features where the StoreKit 1 functionality was problematic, buggy or unreliable, and StoreKit 2 is essentially guaranteed to be an improvement (like checkTrialOrIntroDiscountEligibility) . For devices that aren’t compatible with StoreKit 2, it defaults to a StoreKit 1 implementation. However, we haven’t enabled StoreKit 2 by default for making actual purchases. We’ve tested it extensively in Sandbox and StoreKit Test (see our blog post on how we test our SDKs) but we need to see how well StoreKit2 behaves in production before calling it ready. How to help: Our SDK includes an optional flag in the configure method, called useStoreKit2IfAvailable . In order to help, all you need to do is to set that flag to true! With this flag set, the

6470
Andy
RevenueCat Staff
J
JonasJWNew Member
asked in SDKs
Customer Id is different to app_user_id in frontend

I use Webhooks to register purchases and unlock premium features for the account that purchased the product. I have made a purchase with one Account, lets call it User A. After the subscription expired, I logged in with a different Account, lets call it User B. Of course I called Purchases.logIn(UserB.id) in my app. I then purchased the subscription again and confirmed that it uses User B’s id as the app_user_id in my app. However in my Dashboard and my Webhook it still shows that User A made the purchase. This happend in a Sandbox environment and I used the same Apple Id for both purchases. My RC Project uses the Restore behavior “Block restores”. Can someone explain this behavior to me? I had expected that the Customer Id in my Dashboard is always the app_user_id that makes the purchase in the frontend. Is that not the case? I’m really confused and couldn’t find anything about this behavior in the docs.

1082
S
yavuzakyazici
yavuzakyaziciHelper
asked in SDKs
Getting blank screen running expo metro web Uncaught Error Related to RevenueCat

Hello, I have an Expo app running on iOS successfully for sometime. I wanted to add Expo Metro Web but I keep getting blank screen. I think it is because of an uncaught error. Google Chrome Console says… Uncaught Error: The package 'react-native-purchases-ui' doesn't seem to be linked. Make sure: - You rebuilt the app after installing the package- You are not using Expo Go Does anybody know how I can resolve this? Thanks..

30
yavuzakyazici
L
luckspDedicated Member
asked in SDKs
React Native 0.76.7 + Expo 52 + RevenueCat Paywall react-native-purchases-ui causes app to crash when passing fontFamily options

I checked some other related issues (this, this) but seems different. I just made an SDK update and am running into issues: SDK and Versions: "react-native": "0.76.7", "react-native-purchases": "^8.5.3", "react-native-purchases-ui": "^8.5.3", "expo": "~52.0.32", Android Studio Ladybug Feature Drop | 2024.2.2 Build #AI-242.23726.103.2422.12816248, built on December 17, 2024 Runtime version: 21.0.4+-12422083-b607.1 aarch64 VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o. Toolkit: sun.lwawt.macosx.LWCToolkit macOS 15.3 GC: G1 Young Generation, G1 Concurrent GC, G1 Old Generation Memory: 2048M Cores: 12 Metal Rendering is ON Registry: ide.experimental.ui=true i18n.locale= Android Device: Samsung Galaxy S22, running Android 14 I have had the Paywall running for some time on Expo SDK51 as described in your docs with the custom font family: <RevenueCatUI.Paywall onDismiss={onPressDown} onPurchaseCompleted={handleContinue} onPurchaseError={handleError} onRestoreCompleted={restoreComplete} opti

1499
A
Q
QQQNew Member
asked in SDKs
Appstore country

Hi, quick easy question from a newbie. What I have to use to get the Appstore country used to fetch the Appstore purchases ? Is that in packages? if let packages = offerings?.current?.availablePackages { … Also I need to be able to show the price in the Appstore country Currency , not the locale country, how to achieve that? Thank you.

10247
T
R
RaviNew Member
asked in SDKs
Paywall Properties - Fill/Fit

I am trying to set the ‘Fit mode’ for paywall background image to fit but when the paywall is displayed it shown in fill mode. I am trying to check this on simulator and even after restarting the simulator the image is not displayed as expected. Can you please advise on this issue?

345
B
D
devsergioNew Member
asked in SDKs
Cannot display Paywall Error 23

Hi everyone, I’m integrating RevenueCat into my Flutter iOS app, but I’m encountering an issue when trying to fetch products from the App Store. Here’s the error message I’m getting: code: 23, message: There is an issue with your configuration. Check the underlying error for more details. None of the products registered in the RevenueCat dashboard could be fetched from App Store Connect (or the StoreKit Configuration file if one is being used). await Purchases.setLogLevel(LogLevel.debug);await Purchases.configure(PurchasesConfiguration("correct key")); try { final offerings = await Purchases.getOfferings(); print('Offerings: $offerings'); if (offerings.current != null) { await RevenueCatUI.presentPaywall(); } else { print('No available offerings.'); }} catch (e) { print('RevenueCat Error: $e');} purchases_flutter: ^8.6.1purchases_ui_flutter: ^8.6.1 Setup Details: • SDK: RevenueCat (latest version) • App Store Connect: Subscriptions are set up • Product IDs: They match exactly between A

100
D
Y
YU ChenNew Member
asked in SDKs
The response from the "Get Purchases" endpoint in REST API v2 isn't ordered by time.

The response from the "Get Purchases" endpoint (https://api.revenuecat.com/v2/projects/{project_id}/customers/{customer_id}/purchases) isn’t ordered by the customer's purchase time. Is this expected? It’s weird that the Customer History is ordered by time in the dashboard, but it’s not in the REST API.

90
Y
D
d9c77bNew Member
asked in SDKs
Customize Paywall fonts for Flutter

Hi there, I saw a post 6 months ago saying customising fonts for Flutter Paywalls was on the list and can see that it is an option in the paywall editor, just not accessible/working for Flutter. Is this now updated? I can’t seem to customize my fonts for my paywall at all

103
D
C
chrisbrakebillNew Member
asked in SDKs
Does `/v1/receipts` Support jwsRepresentation

We’re working on migrating our in app purchase code to StoreKit 2 and to stop using “receipts” for purchase verification on iOS. We manage this ourselves so we can update information in our backend when a purchase is made. But I want to send the transaction to RevenueCat. The documentation for `v1/receipts` is not 100% clear to me. Does the `fetch_token` support both the legacy receipt and a `jwsRepresentation`?

41
kaitlin
RevenueCat Staff
A
amsdamsgramDedicated Member
asked in SDKs
All our users have "Transfer to new App User ID" behavior

Hello, We noticed that all our users on RevenueCat dashboard have “Transfer to new App User ID” as a transfert behavior, is it normal? I’m wondering if we are doing something wrong here. Thank you for your help!

193
wes_clark
RevenueCat Staff
A
arjun-jain-a84726New Member
asked in SDKs
Notify user about purchase while switching between Lifetime purchase and Subscription

“RC doesn’t automatically cancel a subscription if a user purchases a different IAP (e.g., lifetime package). For Apple, though, developers aren’t allowed to change a user’s subscription, so you should instead notify your user to cancel their annual subscription if they purchase lifetime as well.” Sorry for the long post but with the above context, but I have some questions around my iOS App. Do you mean we should detect the above activity after user has purchased and then notify them to cancel? Can we notify the user about this when the user is about to buy an IAP inspite of having a subscription and vice-versa? If we are using the configurable paywall v2 - presentPaywallIfNeeded - will this case be handled automatically? Apple servers are down today so unable to check this scenario. I have gold monthly, gold yearly, and platinum lifetime, all configured under 1 entitlement and showing up on the paywall and I am relying on the configurability of the paywall to handle this type of scen

364
H
RevenueCat Staff
L
lucas-32c368New Member
asked in SDKs
Receiving an anonymous ID despite the subscription being identified with our own ID on the client.

This happens in the sandbox (I haven’t tested it in a production environment yet). Since I’m also using Superwall, I identified the user in the purchase controller on initialization (client) like this: Purchases.configure({ apiKey: REVENUECAT_API_KEY, appUserID }); I’m doing some tests, so I subscribed and I wait for the renewal events to arrive: Why does the first renewal arrive with an anonymous ID, and then it gets fixed in the subsequent event? Is this a sandbox issue? What other info can I provide to help debug this?

30
L
J
junsoo-50137cHelper
asked in SDKs
Is it ok to only check `expires_date` for validation?

Hi, I need to check whether user is able to use the service with his current subscription and I found that there is “expires_date” in the response of the API. Is it ok to only check this field for validation? Will it be updated once refund or other intermediate stops happen?

20
J
K
kate-wNew Member
asked in SDKs
React Native Paywall v2 not Displaying Properly on Android

My paywall is displaying the default formatting for the android paywall, rather than my custom UI. IOS displays perfectly but I understand it is less opinionated in terms of config. I have put in DEBUG logs but the android one doesn’t appear to get any warnings - maybe failing before it gets to show any warnings. the IOS one gets the following warnings, which may be helpful? LOG [RevenueCat VERBOSE] Looking up localized configuration for ["en-GB", "it-GB"], searching for ["en-GB", "en", "it-GB", "it"] LOG [RevenueCat VERBOSE] Found localized configuration for 'en-GB' LOG [RevenueCat DEBUG] ℹ️ Looking up localization but found no strings LOG [RevenueCat WARN] Could not determine price format because price string is incompatible. LOG [RevenueCat WARN] Could not determine price format because price string is incompatible. LOG [RevenueCat WARN] Could not determine price format because price string is incompatible. LOG [RevenueCat WARN] Could not determine price format because price string

171
K
J
jacob-macrosHelper
asked in SDKs
Not possible to use RC paywalls for a hard paywall?

I saw this post in which RC says that paywalls generated by RC must always be swipe-down-able, or dismissible. That means it’s not possible to use a RC paywall as a hard paywall that cannot be dismissed? I’m sorry but that’s whack. Can you please change this and allow paywalls to exist as full screen experiences that cannot be dismissed?

181
joan-cardona
RevenueCat Staff
C
carlos-bertomeuActive Member
asked in SDKs
Paywall v2 not being shown on Android

Hello team! I’m configuring a Paywall with the new v2 version. For iOS I’ve managed to make it work perfectly. Now, on Android it seems to be all correct, but the paywall shown is not the one I have configured, it seems a basic default one. I’ve checked and I have the correct Products and Offerings, as I always check it with the getOfferings function in the app. What I can do, do you know what could be the problem? Thanks!

14926
JayShortway
RevenueCat Staff
R
rankinitNew Member
asked in SDKs
Create paywal including a UISwitch to between free trial and annual subscription?

Is this possible thru the paywall builder? Or is this something that needs to be custom created? Thanks!

91
joan-cardona
RevenueCat Staff
A
anarenteriareNew Member
asked in SDKs
Are Paywalls V2 still not supported on Android using Flutter?

I am developing a Flutter app using Revenuecat Paywalls V2, my understanding is that Paywall V2 are only available on iOS for flutter, however I found this comment on a post last month saying it will be available at the end of last month, is there any update on this?

50
A
O
oskarpNew Member
asked in SDKs
How do I handle errors when fetching products?

In my Android Jetpack Compose app I am using com.revenuecat.purchases:purchases 8.14.0 and com.revenuecat.purchases:purchases-ui 8.14.0. The paywall is displayed like this: import com.revenuecat.purchases.CustomerInfoimport com.revenuecat.purchases.models.StoreTransactionimport com.revenuecat.purchases.ui.revenuecatui.Paywallimport com.revenuecat.purchases.ui.revenuecatui.PaywallListenerimport com.revenuecat.purchases.ui.revenuecatui.PaywallOptions ... Paywall( PaywallOptions.Builder({}) .setListener(object : PaywallListener { override fun onPurchaseCompleted( customerInfo: CustomerInfo, storeTransaction: StoreTransaction ) { if (customerInfo.entitlements.active.containsKey(ENTITLEMENT_ID)) { setShouldPaywall(false) } } override fun onRestoreCompleted(customerInfo: CustomerInfo) { if (customerInfo.entitlements.active.containsKey(ENTITLEMENT_ID)) { setShouldPaywall(false) } } }) .build(),) How can I catch and handle any errors that occurs when, for example, fetching the offerings? I am

223
jeffrey_bunn
RevenueCat Staff
E
elviraNew Member
asked in SDKs
[React Native] Unclear behaviour and issues with Paywalls v2

Hey folks! I've just tried using Paywalls v2 instead of my own custom paywall and I find a few things confusing that I couldn't clarify in the documentation or repo. I would love to know how things are supposed to work: If I press "Restore" when there is nothing to restore, I don't get either onRestoreError or onRestoreCompleted callbacks triggered. Nothing happens on the UI - the button changes to a loader for a few seconds and then just goes back to normal. I find it confusing and would expect something to happen to at least notify the user about what's happening. Does the paywall close by itself after a successful purchase? I see navigation happening twice after migration from custom code, where I had a manual navigation call. But when I removed it, my testers said that in TestFlight the paywall didn't close, and moreover they couldn't close it themselves via the close button; only reloading the app helped. I also noticed a new crash that appeared only on the commit adding custom pa

152
E
D
david_harmonyVNew Member
asked in SDKs
Flutter PaywallView onPurchaseError callback not getting called.

As far as I understand, the onPurchaseError callback on the PaywallView gets called whenever any of these errors occur: https://www.revenuecat.com/docs/test-and-launch/errors#purchasing-errors. I’ve been testing this by canceling a purchase. But as far as I can tell nothing inside the function call is getting executed: onPurchaseError: (error) { log(“Hello World”); } If I look into my logs, I can see that the error was thrown correctly though: E/[Purchases] - ERROR( 4764): 🤖‼️ BillingWrapper purchases failed to update: DebugMessage: . ErrorCode: USER_CANCELED.null E/[Purchases] - ERROR( 4764): 🤖‼️ PurchasesError(code=PurchaseCancelledError, underlyingErrorMessage=Error updating purchases. DebugMessage: . ErrorCode: USER_CANCELED., message='Purchase was cancelled.') I’m using:> purchases_flutter 8.6.1> purchases_ui_flutter 8.6.1 SIDE NOTE: Observations apply to both V1 and V2 paywalls. So far, all that I can only confidently say is that onPurchaseComplete and onRestoreComplete are wor

30
D
I
ivnaDeveloperNew Member
asked in SDKs
Play store and Sand Box not synchronized

Hi I implemented RevenueCat in my Flutter app. Now I am testing on my real Android device. It usually works, but sometimes not as expected. My greatest concern is that sometimes SandBox data and Play Store data aren’t synchronized. I made a purchase and it renewed 5 times as I can see on Play Store, but on Sand Box Revenue data it says it renewed only 2 times (once it was 4 times, and in other occasions it was 5 times as it should be). What does this mean? If user renews subscription, user will see he is subscribed on Play Store, but he won’t have premium access since I only rely on RevenueCat regarding someone is premium or not. How is this possible to not have full synchronization? This is major bug.

353
H
RevenueCat Staff

Most helpful members this week

Badge winners

Show all badges

Popular tags

Terms & ConditionsCookie settings

Cookie policy

We use cookies to enhance and personalize your experience. If you accept you agree to our full cookie policy. Learn more about our cookies.

 
Cookie settings