Same problem here. After upgrade to SFOS 4, all contacts in Whatsapp are gone. Using MS Exchange sync for contacts and calendar. In Threema all contacts are still there. A manually added local contact in phonebook also does not sync. Please help!
Hi!
Same probleme here with my Xperia X. No contacts available in Whatsapp and I don’t see name in existing conversations, just phone numbers.
I don’t use sync with anything.
I worked around this by exporting my contact from Nextcloud and importing them into the Phone via Settings -> People app and it’s working fine with that. Although my sync is not needed then 
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I have encountered the same issue with my Xperia X, contacts from nextcloud are not synchronised to the phone (but the other way around, yes), so that they are not recognised by whatsapp/android. So only contacts that I have added on my phone show up in whatsapp (and show as both on the phone and in nextcloud)
Thank you for the post. We created a bug report for this.
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Hello,
I am not sure creating a thread just for my case is necessary, but it looks like I am the only one that don’t see his contacts on whatsapp since the last SFOS update.
For people I have already chated with, I can only see there numbers. But I cannot start a new conversation with someone new and I cannot create a new group. There are no people in my contacts list.
By the way, my contacts’ name does not appear on whisperfish (native signal app) either, could it be related?
Are you using some cloud service to store your contacts and sync them from there to your phone?
If that is the case then no, you are not the only one. This problem seems to affect only older Android compatibility layers (i.e. Xperia X with Android 4.4 and older). And it affects only WhatsApp, not other Android apps.
And contacts that are stored only locally in phone’s own address book do show up in WhatsApp’s address book. So do contacts that are created on the phone and THEN synced to cloud service (because that way a copy of contact information is created in phone’s own local address book).
It’s a regression that happened with update to Sailfish OS 4.0.1. And according to comment in this thread an internal bug report has been created.
Thank you for your answer. But no, I am not using any cloud service to store my contacts. They are all stored locally in phone’s own address book but don’t show up in Whatsapp. I might have synchronised once with google account but not anymore.
Yes, I did try it but it did not work. I’m a bit lost…
For me the workaround also didn’t work 
It might be that the same bug that prevents Signal from accessing contacts affects WhatsApp, too, and for Signal it has been fixed in development and will be released in the next release (in a month or two I guess).
WhatsApp can now access my contacts in my CalDAV (OwnCloud 10) account, with SFOS 4.1.0.23 EA, that is! @PeperJohnny does it work for you? If it does, this issue should also be reported as fixed 
Unfortunately it doesn’t for me. Did you do anything special or just deleted the local ones and everything was well?
I did a fresh reflash with 4.0.1, and now updated to 4.1.0. All my contacts are on my synced OwnCloud account.
I however installed WhatsApp, granted it permissions manually, and only then started it… Could you double check the permissions?
Can’t do this unfortunately because of the old aliendalvik on the Xperia X. I’ll reflash once my 10 II is running. Maybe it doesn’t happen on new installs.
Same problem for me (Xperia X and Google Accounts).
Update to 4.1.0.24 don’t solve the issue.
No contacts information on Whatsapp.
I use WA widely in my work and it’s very difficult without contacts info.
Be patient and wait, they’ll fix it.
Be patient and wait, they’ll fix it.
Now my patience is near to the end.
I love Sailfish way, Sailfish UI, but I need to have usable apps.
And no, I don’t want to spend 300 euro for a new phone plus a new licence for Sailfish.
I got the feeling. I ended up exporting my contacts as vcf and reimporting them. However that are the benefits gone from syncing. Sadly or gladly it works flawlessly on the X10-2.
The same for me : Sailfish X on Xperia X and now on the 4.1.0.24 : It does not work!
I guess that it has to do with Android 4.4 level of the Xperia X. But up to 4.0 it was working! So I’m disappointed to say the least!
Ok Xperia 10 II is on my way, but not very happy that I need to buy a new one just for that annoying behavior.
I have the same problem here, Xperia X F5121, SFOS 4.2. The Whatsapp do read SOME of my contacts, but others, especialy those last created, its not read. One workaround that worked for me is: Create a new contact in another phone (I have one Windows Mobile here), and share that contact by bluetooth to SFOS. Than it will be recognized by SFOS. Perhaps it is a problem with permissions?