Hello Developer support, In one of our live application we have seen that users are purchasing weekly subscription and automatically they shifted to yearly product. Due to this we have received high revenue and also refunds afterwards. To prevent this we removed our yearly product from the sale. In App Store Connect we have seen activations for weekly product and convert to standard prices are yearly products. Also we have seen weird behavior of user getting trial for same product for three times. For developer support people I am sharing my app id - 1320373866 , and here is the video of our issue - https://drive.google.com/file/d/1DBHw8ivgql4eNoo8NC3xo5v4wgr8Oh7x/view?usp=sharing , Also attaching trial behavior screenshot.
Subscription Purchase product issue
Hello -
First, to answer the question you asked in the video: how is it possible for subscribers to change from one plan to another?
We can see that you have set up one subscription group with ten different products - eight of which are currently "Ready for Sale" (active.) When a customer subscribes to any product, they can at any time switch to a different product in the same group as documented here. See attached screenshot specific to your app and its available products.
If your app is not presenting upgrade/downgrade/crossgrade options, then customers are switching from their Manage Subscriptions page. Any changes from one subscription to another can only be completed by the customer.
Developers must ensure that the ordering and grouping of individual subscription products within a subscription group is addressed to meet their business needs, as documented here, under the section titled "Assign subscription levels." This setup is completed in App Store Connect.
Please let us know if you have any further questions or concerns.
Thank you.