Hi,
I was trying to transfer my phone number to another mobile carrier. I attempted to use the Rufnummernmitnahme feature in the Mein O2 app, but at the final stage, it shows the wrong date of birth (interestingly, it's only off by one day). However, the correct date of birth is listed in the Mein O2 portal and all my documents. Is there an issue with the app, or has my data somehow been corrupted?
UPD: just checked with my wife’s phone. She has the same issue in the app, so seems like it’s a bug in the app.
o2 has had the problem with the wrong date of birth for a few weeks now. Instruct the new provider to port your phone number with the correct data. It should still work.
Hello
first of all welcome to our community 
Great that you've contacted us with your request.
The issue is already known and should be fixed in the meantime. Would you like to apply for the number portability again and tell us whether the date of birth is now displayed correctly?
Best regards
Cora
Thanks for your response.
I've already initiated the number portability process.
The app displayed an incorrect date, but I ignored it and proceeded anyway. And it worked, the confirmation SMS had the correct information.
But please fix the app.
Edit o2_Cora 27.07.24: Quote removed
Hello
thanks for your feedback I am glad that the application for the number portability still worked and that the correct data was displayed in the confirmation.
If there is anything else we can do to support you, please let us know
Best regards
Cora
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