[Issue] Contact exported 21 times

[Micha-he]

One contact, the last one in the exportfile from the Google contacts App, is exported 21 times with this app.

All vcard section are identical, like this:

VERSION:2.1
N:Eeeeeee;Tttt (Dd);;;
FN:Tttt (De) Eeeeeee
TEL;CELL:+49175xxxxxxx
END:VCARD

[vmx]

Could you please try to export it manually from the Google contacts App to see if that export also contains that contact that many times?

[Micha-he]

I've checked it before I opened this issue.
The export from the Google contacts app, contain the entry only one times.

Furthermore, the file size oft the vcf is significantly different:
Original Google App 17634 Byte
Your App 15350 Byte

[vmx]

Thanks for checking. I could imagine that if a contact comes from different sources, let's say two different messengers or so, that there could be a duplicate. But 21 times really doesn't fall into that category. I'm using the standard APIs for this. The root cause is probably almost impossible to find. Though I could think about adding some de-duplication functionality, so that duplicates, independent of how they came into existence, are stored only once.

[Micha-he]

The contact in question only exists in the devicememory and parallel in WhatsApp. Same as all my other contacts.

No other messenger are installed or activated. No additional contacts in my Google-account.

Additional Info: Device is a Moto G55 5G with Android 15

New findings: If I delete the relevant contact, another contact is exported multiple times, although it only occurred once during the last export. But each time, one less than the last time (20, 19, ...)

[Micha-he]

I have manually compared the two export files and recognized the following:

Based on the original export,

• the first 29 contacts are missing in the export from SD Contacts
• the next contact is 18 times in the export from SD Contacts
• all later 79 contacts have small diffs (partly duplicate identical phone numbers), but were exported with SD Contacts.

However, the first skipped contacts do not show any abnormalities.

Total:

• Google App 108
• SD Contact 79 mostly ok + 18 duplicates = 97
• Missing 29