ERROR when switch from monthly to annually

I have the same problem trying to switch from silver monthly to annually. I also tried cancelling the monthly subscription first, and that resulted in the same error.

Hi,

this error comes from Google Play for and there isn't any specific reason. Please try clear cache of Google Play app in the first step:

• Open System Android Settings > Application Manager (apps) > Google Play Store > Storage > Clear data
• Do the same for Google Play Services app
• restart the device
• try to purchase the subscription again

Please see other alternative methods described at https://appuals.com/google-play-store-error-df-dferh-01/ (if clearing cache doesn't help).

Thanks, Petr

I've tried clearing the data & cache for Google Play Store & Google Play Services and restarting the device. This has not fixed the problem.

Just to add, that installing other apps through Google Play Store works fine - so the problem is specific to Locus Map.

To further add, I can also cancel and re-subscribe to the monthly subscription without problem. It's only attempting to subscribe to the annual subscription that results in the above error.

I'm sorry but we can't really influence the purchase process. This is completely managed by Google Play. I can only suggest checking the other step in the document I posted in the previous post. Please contact also Google Play support. I guess that they can better investigate the reason of this issue.

Please inform me about the progress

Thanks, Petr

I really don't want to remove and re-install my primary Google account - not sure of the side-effects this will have (lost settings etc).

I've granted "unrestricted data access" to google play store (google play services already had it). Problem remains.

Google play store is up-to-date (and I'm certainly not going to install a replacement APK from a random 3rd party website).

I checked Google Play store "Help and feedback" it suggests (i) troubleshooting myself - done (ii) contact app developer for support (iii) request a refund. There is no option to contact Google Play support.

I want to give you guys money...

See also https://stackoverflow.com/questions/59367611/in-app-billing-error-when-upgrading-subscription-plan-error-while-retrieving. Is it perhaps a problem on your side?

Hi,

basically, it's an almost identical situation, but it doesn't explain the reason. Changing the proration mode isn't a solution and the system is supported by Google.

You can contact the Google Play support at https://support.google.com/googleplay/gethelp

Could I ask you what's your Android system, what device you use, and if you use the official android system from the device vendor, please?

Thanks, Petr

I contacted Google play support:-

" I do not see any issue on your account that will stop you upgrading your subscription.

I would recommend to please reach out back to the app developer at locus.map@asamm.com so that they can further investigate the issue. Since the app developers are responsible for supporting their apps, have full control over what their app offers and how it functions making sure they work well for you.

Feel free to let them know that you contacted us about this, but this issue isn't something that we can resolve for you"

Android 10, Huwaei P30 Pro. Yes, it's official android from them (and not rooted etc)

That's funny. The error is displayed by Google Play app, the purchase is managed by Google Play, there are dozens of articles about Google Play error DF-DFERH-01 and the official Google Play support says that we have to fix it.

I'm sorry but honestly, we do not know how to fix it. Please search this error on the internet (you probably already did it) and you find lots of articles about it. It's not only about subscription and proration mode. It seems that it's a common issue with no exact sollution.

I can only suggest canceling the current monthly subscription, wait one month until it expires, and after that purchase the new annual subscription.

Thank you for understanding

Petr

As you suggest, I'll wait until the end of the month and if I can then make an annual subscription all is good.

However, I imagine many people will sign up for a month before making an annual commitment and this is a pretty poor user experience.

When every other app I have works fine with Google play store, I'm left feeling this is a problem that you need to take the lead on. Sorry but as an end user, my relationship is with you (the app developer) not with Google play store.

But in any case, it's clearly your call - as I said if I can manually switch to annual at the end of the month I'm happy.