Wrong FAQ link for VC_ALREADY_REGISTERED error

Technical details

• Device name: Samsung Galaxy A52 5G SM-A526B/DS
• Android version: 12
• First reported on App version: 2.20.4
• Reviewed as unfixed in App version: 2.24.0

Describe the bug

When scanning a certificate which has already been stored in CWA the pop-up error message links to “FAQ FOR CERTIFICATES” using the URLs:

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

The anchor #eu_dcc links to the topic “Certificates” in the “App Features” section of the FAQs. This section does not contain the FAQ for VC_ALREADY_REGISTERED.

Steps to reproduce the issue

1. Open CWA and tap the “Scan” button
2. Scan a certificate
3. Scan the same certificate again
4. Tap on “FAQ FOR CERTIFICATES”

There is nothing helpful in the FAQ section shown:

(Screenshot above: updated Apr 21, 2022, 09:48.)

Expected behavior

The link “FAQ FOR CERTIFICATES” in the pop-up error dialog should provide useful information.

Since the restructuring of the FAQs took place, there is a separate location for “Certificates” in the “Troubleshooting” section of the FAQs (not the same as the “App Features” section). The “Troubleshooting” section has the anchor #support with URLs:

• https://www.coronawarn.app/en/faq/results/#support “Troubleshooting”
• https://www.coronawarn.app/de/faq/results/#support “Troubleshooting”

Within the “Troubleshooting” section, the FAQ article specifically dealing with the error VC_ALREADY_REGISTERED has the anchor #hc_already_registered and the URLs are:

• https://www.coronawarn.app/en/faq/results/#hc_already_registered “Error ‘VC_ALREADY_REGISTERED’, ‘TC_ALREADY_REGISTERED’ or ‘RC_ALREADY_REGISTERED’”
• https://www.coronawarn.app/de/faq/results/#hc_already_registered “Fehlermeldung ‘VC_ALREADY_REGISTERED’, ‘TC_ALREADY_REGISTERED’ oder ‘RC_ALREADY_REGISTERED’”

Possible Fix

The anchor in the URL should be changed from #eu_dcc to #hc_already_registered

The link to the FAQ is defined in https://github.com/corona-warn-app/cwa-app-android/blob/c7292d5f93348b69ef335237a7e6d8d7ed622b5b/Corona-Warn-App/src/main/res/values/links.xml#L25-L26 and https://github.com/corona-warn-app/cwa-app-android/blob/c7292d5f93348b69ef335237a7e6d8d7ed622b5b/Corona-Warn-App/src/main/res/values-de/links.xml#L15-L16

and these are the two files which need changing.

After this change the following FAQ is shown after tapping “FAQ FOR CERTIFICATES” in the error dialog for VC_ALREADY_REGISTERED:

---

Internal Tracking ID: EXPOSUREAPP-13218

[MikeMcC399]

• PR #5310 is now merged into release/2.25.x, so the https://github.com/corona-warn-app/cwa-app-android/labels/Fix 2.25 label can be added to this issue.

[MikeMcC399]

• Due to the planned used of the FAQ anchor link #hc_already_registered PR https://github.com/corona-warn-app/cwa-website/pull/3004 is submitted to add the link to the website test suite.