The provided error message states, that you do not have the privileges necessary to change that information, as it comes from an immutable dictionary.

I think it tries to change your identity information from your SOGoUserSource.
Per default nobody has write privileges for those (and I think that is sensible).

What exactly do you want to achieve with that anyway?

I think it tries to change your identity information from your SOGoUserSource.

I do not know what is SOGoUserSource, sorry.

Per default nobody has write privileges for those (and I think that is sensible).

It works with iCloud, for example. That's the way how Apple Contacts works.

What exactly do you want to achieve with that anyway?

Stop polluting my logs with errors. I suppose it may have some hidden influence to different parts of OS because it can't update own ID. This happens every time I start Contacts.app, it tries to write this info every time.

SOGoUserSource is a SOGo server configuration option defining where to find valid users.
Those are either LDAP or ActiveDirectory or Database sources containing usernames, passwords and email addresses etc. for valid users of this server.

Sure it works with iCloud, as Apple invented that "feature".
But I do not know of any other address book provider doing so.
And I do not know what benefit it shall provide.

If you just do not like those error messages, you should contact Apple to handle them correctly, as "access denied" are absolutely valid responses.

Thanks for info. I will send a link to this bugreport to Apple because anyway I don't know how it works internally. Anyway, Contacts.app have much bigger problems right now, which is still unfixed, maybe they will fix this problem too or will say something useful.

Radar ID 25312244

(Radar is an internal Apple Bugreporting System, it's impossible to view it, just number for note).

The application does the following PROPATCH:

PROPPATCH /SOGo/dav/sogo3/Contacts/ ...

<?xml version="1.0" encoding="UTF-8"?>
<A:propertyupdate xmlns:A="DAV:"><A:set><A:prop><C:me-card xmlns:C="http://calendarserver.org/ns/&quot;>&lt;A:href>/SOGo/dav/sogo3/Contacts/personal/3ABC-56F29500-1-444FF88.vcf&lt;/A:href>&lt;/C:me-card>&lt;/A:prop>&lt;/A:set>&lt;/A:propertyupdate>

We don't support that property - thus we return a 403.

We don't support that property - thus we return a 403.

Do you have any plans to add its support?

Not anytime soon.

Not anytime soon.

OK, thanks for info!