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Article ID: 130451, created on Mar 17, 2017, last review on Mar 17, 2017

  • Applies to:
  • Operations Automation 7.0


Office365 synchronization fails with the following error:

Failed to add 1 domain(s):
- (Unable to create domain in Operations Automation: Domain '__domain_name__' already exists.)


This domain had been added to Office365 previously, but removed for some reason. Some redundant Microsoft-related DNS records were not removed properly.

Check the /var/log/core.log on Management Node to obtain the exact error:

c.p.p.s.a.e.APSExceptionMapper Error occurred javax.ejb.EJBTransactionRolledbackException: 
Can not create DNS Record for '' 
There is an existing CNAME record (, #191111) already.


Remove the existing CNAME DNS record and repeat the synchronization.

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