Add FAQ entry or extend `cert_eu_travel` explaining why certificates listed as valid in CWA v 2.7 are shown as "Certificate Cannot Be Validated" in CWA v 2.8

[Ein-Tim]

Where to find the issue

• https://www.coronawarn.app/de/faq/#cert_eu_travel
• https://www.coronawarn.app/en/faq/#cert_eu_travel

Describe the issue

See https://github.com/corona-warn-app/cwa-documentation/issues/678#issuecomment-907697651

Suggested change

See https://github.com/corona-warn-app/cwa-documentation/issues/678#issuecomment-907706289 & https://github.com/corona-warn-app/cwa-documentation/issues/678#issuecomment-907777399

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Internal Tracking ID: EXPOSUREAPP-9279

[Ein-Tim]

Proposed text by @vaubaehn:

Update

With version 2.8 the behaviour of the certificate validity check has changed. Entry rules for travellers have been set up by all EU member countries, but until today only a few countries provided technically translated entry rules which Corona-Warn-App can make use of. Before version 2.8, when there were no rules available to be downloaded for a certain country, after a check Corona-Warn-App displayed "Certificate Valid" and explained in the following text, that for this country no rules were provided/could have been checked. "Certificate Valid" referred to "Technical Validity" in this case (more information on what the "Technical Validity" is can be found in this FAQ entry). However, we understood that this result may be misinterpreted, for example when an incomplete vaccination was checked, the wrong conclusion could have been drawn, that this certificate warrants entry without restrictions. We clarified this since version 2.8: In case a member country did not provide technically translated entry rules for Corona-Warn-App, the headline now states "Certificate Cannot Be Validated", whereas the following texts stayed the same. This does not mean that your certificate is not valid or that you are not allowed to enter the country you checked your certificate against. In this case, please verify your status with information that you find in reopen.europa.eu. Further information on this change can be found in the second paragraph of this blogpost: Corona-Warn-App version 2.8 displays names in certificates in standardized characters

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Why does the CovPass app show a different result when I check entry rules for a country that did not provide technically translated entry rules yet? The validity check for entry rules was first introduced in Corona-Warn-App with version 2.6.1. When this validity check was developed for CovPass, Corona-Warn-App's result screen served as a template for CovPass' current implementation.

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Old FAQ entry https://www.coronawarn.app/en/faq/#cert_eu_travel (if we decide against creating a new one).

[vaubaehn]

I'm not so happy that this is that long, but I'm afraid that otherwise most users won't understand what's going on when it's not explained in-depth. Another thing that I'm a bit unhappy about is the term 'technically translated entry rules'. I was only Introducing it, because from user reports in the stores I understood, that entry rules published by countries in media are 'set equal' to the rules that CWA can check. I felt it is necessary to distinguish here so that users can understand why CWA can't check everything even though a country had published entry rules on their website.

[MikeMcC399]

@Ein-Tim I would hold back on mentioning contact with the CovPass App developers unless they have acknowledged a willingness to change, otherwise it may be setting false expectations.

[Ein-Tim]

I suggest to create a new FAQ entry: "Why does the Corona-Warn-App on version 2.8 show that my certificate couldn't be validated although the previous version showed my certificate as valid?"

[vaubaehn]

I would hold back on mentioning contact with the CovPass App developers unless they have acknowledged a willingness to change, otherwise it may be setting false expectations.

Maybe then instead

We are in contact with developers of CovPass to align the results of both apps.

better: We are working on a common solution for both apps. ? Because @mtwalli expressed already his agreement in this way

Yes, we need to explain to them why there is inconsistency between the two Apps. I agree, we need to communicate that to CovPass team

which is first step on 'working on it'. What do you think?

[Ein-Tim]

What do you think? I'll start to translate this now and provide a PR when the translation is finished.

[vaubaehn]

I suggest to create a new FAQ entry: "Why does the Corona-Warn-App on version 2.8 show that my certificate couldn't be validated although the previous version showed my certificate as valid?"

One practical reason to have it all in the one and old eu travel entry could be, that all business rules screens in CWA link to that entry. Without change in the code, the link in the screen for 'Certificate Cannot Be Validated' would not link to the explanation in the FAQ and could be missed, when not reading other FAQ entries.

Another option would be to create a new entry, and additionally place a link to that in the eu travel entry.

[Ein-Tim]

@vaubaehn

I'd rather add a link to the old FAQ entry. Also, I'd place the new entry directly below the old one.

[vaubaehn]

@Ein-Tim

What do you think? I'll start to translate this now and provide a PR when the translation is finished.

For me this is very nice! ❤️ Thanks a lot!

[vaubaehn]

@dsarkar @heinezen Pinggggg...

[Ein-Tim]

PR: #1683

[vaubaehn]

Hi @dsarkar , do you consider to refer/instruct the app store support teams to point to the new FAQ entry in their responses to users? At least in Google Play Store there are still users asking about the changed UI for countries without rules, but the answers didn't change yet.

[dsarkar]

@vaubaehn Sure, I let them know. Many thanks for pointing it out!