Error while enabling Lync services for the user

Get the error 'Error while enabling Lync services for the user ' when creating a user. Are there any further logs I can look at?

I've been through the troubleshooting guides and it does not look like it is any of these;

28. While creating new user(s) along with Lync Telephony options, either of these error messages is displayed: "Error while enabling Lync services for the user" or "Error occurred while enabling Lync Telephony options". What could be the possible reasons?

Mentioned below are the possible reasons for the above errors. Rectifying them would help you in avoiding these errors:

Missing values required for the settings of the required Telephony type. The values could be missing because of:
- Providing an empty value for the settings / the settings being left empty.
- You might have used a naming format but the attributes specified in the naming format might not have any values. For example, for 'Line URI' you might have specified the value as 'tel:%telephoneNumber%' but the attribute telephone number might have been empty.
Duplicate values for the settings that must have unique values. For example, in 'Line URI' you might have provided a value that another user already has and this might have caused the error.
The LDAP attributes provided in the settings might have some special characters. For example, you might have user '%mail%' to provide values to a Lync Telephony setting and the email address could have special characters like: %, $, #, etc. Though the mail attribute supports special characters, the Lync settings do not support these special characters.