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We use an exchange active sync protocol for mail configuration and fetch mail and calendar data, it was working as expected. with the latest office 365 updates we started seeing issues with the ResolveReceipient command, which is used to fetch the free/busy data for invitees.
Now it returns the availability status as 163, description of this error code is following as per Microsoft document:
Free/busy data could not be retrieved from the server for a given recipient. Clients SHOULD NOT reissue the request as it is caused by a lack of permission to retrieve the data.
we are trying to fetch free/busy data within the organization, calendar folders show with organization users can see free/busy status. there is no policy to control free/busy data visibility status within the organization.
We checked the same in OWA and the outlook application, it works fine there. But OWA and outlook don't use Exchange active sync.
So what changed in the latest office 365 update? is some config is expected to get this data? or new parameter needs to be part of the request? or this is a bug in EAS? or this is no longer supported in EAS?
@iosadmin
As this issue is more related to Exchange, I would modify the tag to be "office-exchange-online-itpro".
Thanks for your understanding.
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Hi @iosadmin
Are you using a self-developed application to fetch data with ActiveSync?
To test whether EAS is working fine, it is recommended to use the Microsoft Remote Connectivity Analyzer tool.
Here is the link: Exchange ActiveSync
@Kael Yao-MSFT
Yes, we are using this exchange active sync to develop the application.
Remote Connectivity analyzer passes all the tests, is there any way to specify the commands in this tool?
Even in our application we are able to do all the operations using EAS commands, response for this particular command is changed. From the last office 365 update, it gives availability status as 163, with the same setup as earlier.
This status code describes lack of permission, is there any additional configuration is expected to get this free/busy data?
Application link:
https://apps.apple.com/us/app/ibm-maas360/id459732007
Hi @iosadmin
Thanks for the update.
Remote Connectivity analyzer passes all the tests, is there any way to specify the commands in this tool?
This tool is mainly used for normal client connection tests.
You cannot specify commands in it.
Even in our application we are able to do all the operations using EAS commands, response for this particular command is changed. From the last office 365 update, it gives availability status as 163, with the same setup as earlier.
Since your question is more related to Exchange development, I have added the tag "office-exchange-server-dev" which is used for Exchange development questions to it.
Thanks for your understanding.