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David Sankovsky
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ActiveSync Doesn't update all the contacts

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?
ExchangeSmartphone ProgrammingAndroid

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David Sankovsky

8/22/2022 - Mon
Will Szymkowski

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.
David Sankovsky

ASKER
I'm afraid this refers to Windows Phones, as I stated, the problem is on Android.
Mohammed Khawaja

Windows Phone and Android they both use ActiveSync.  As Will stated, the registry fix should resolve the issue.
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James Murphy
Will Szymkowski

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

Will.
David Sankovsky

ASKER
Then how do you explain it worked on an iPhone? it still uses the same activesync connector..
Mohammed Khawaja

I guess one way to find out is to make the change and see.
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David Sankovsky

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