ActiveSync Doesn't update all the contacts

David Sankovsky
David Sankovsky used Ask the Experts™
on
Hello Guys,

I have an Exchnage environent with many domains and many mailboxes on each domain.
I have a ceratin mailbox that has over 5.6k contacts in it.

When trying to sync it to an  Android phone, It only synced about 4.9k of them, futhermore, after reaching the peak of 4.9k contacts, it starts dropiing.

I tried it on two different phones, on two different Android versions. both Kitkat and Lolipop, and on both the same issues happens.

I also tried the builtin app an several external apps that all showed the same thing. I check the issue on an iPhone and I couldn't reproduce the issue.

Has anyone encountered such an issue?
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Will SzymkowskiSenior Solution Architect
Most Valuable Expert 2015
Top Expert 2015

Commented:
The reason for this is that there is a 5k limit for contacts. which is why it is stopping at 4.9. Aparently there is a registry value that can correct this. See the link below.
http://answers.microsoft.com/en-us/mobiledevices/forum/mdupdate/notes-field-of-contacts-and-sceduled-calendar/7fd60f5c-98bb-46b2-9848-254efe921824

Will.

Author

Commented:
I'm afraid this refers to Windows Phones, as I stated, the problem is on Android.
Mohammed KhawajaManager - Infrastructure:  Information Technology

Commented:
Windows Phone and Android they both use ActiveSync.  As Will stated, the registry fix should resolve the issue.
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Will SzymkowskiSenior Solution Architect
Most Valuable Expert 2015
Top Expert 2015

Commented:
This is specifically an ActiveSync issue NOT a phone issue. ActiveSync has a 5k limit.

Will.

Author

Commented:
Then how do you explain it worked on an iPhone? it still uses the same activesync connector..
Mohammed KhawajaManager - Infrastructure:  Information Technology

Commented:
I guess one way to find out is to make the change and see.
Commented:
I made the change and it still didn't work..
What did work however, was downgrading the Phones to kitkat instead of lollipop.
Seems that the latest patch Samsung deployed to prevent misuse of the SMS security breach somehow caused this problem.
At any rate, it was never a problem with the servers.
Thanks for trying everyone.

Author

Commented:
Problem was with the phones versions. Not with the exchange servers or the activesync as previously suspected.

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