In app subscription says "The item you requested is not available for purchase"

Question

1. I've created apk with BILLING permission and uploaded to production (Not published)
2. Created an yearly $0.99 subscription under in-app products (Activated).
3. Included license key in code.
4. Rebuilded signed apk and uploaded in alpha (Not rolledout).
5. Added tested email accounts.
6. Joined as tester with testing email account.
7. Waited alpha updated from google play doesnt worked. Installed alpha apk manually.
8. Tried to launchPurchaseFlow with subscription with following code.

I'm using IabHelper.

//SKU_SUBSCRIBED is the product id of subscription. Which is double verified by me.
//RC_REQUEST = 10001
//payload = "mytesttoken"

mHelper.launchPurchaseFlow(HomeActivity.this,
                        SKU_SUBSCRIBED, IabHelper.ITEM_TYPE_SUBS,
                        RC_REQUEST, mPurchaseFinishedListener, payload);

It's says

The item you requested not available for purchase

What mistake I have done here ?

Answer 1

You should do next steps:

• Check id of the subscription in GooglePlay console and your app. They must be identical.
• Check the version of the app on your phone and the version of the app in GooglePlay alpha channel. They must be identical.
• Release in the alpha channel should be as Full rollout