ABAddressBook group creation fails with No error when We have an outlook account configured in Native Mail and contact sync Enabled

Originator:skriyaz7
Number:rdar://39440699 Date Originated:15/4/18
Status:OPEN Resolved:
Product:IOS Product Version:11.2.6
Classification: Reproducible:Always
 
ABAddressBook group creation fails with No error when We have an outlook account configured in Native Mail.

Steps to Reproduce:
- Add one outlook account in native Mail
- enable contact sync, So this will create a group in contacts Native App
- Then try to create one group from your app, Now this will lead ABAddressBookSave() to fail without any error info.
- If you disable contact sync for configured account then our app able to create group without any Error.

Please find the sample code below :
https://citrix.sharefile.com/d-sfc5b8c6fd1846149

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