# View self group channel API questions
**URL:** https://community.sendbird.com/t/view-self-group-channel-api-questions/3701
**Category:** API
**Created:** [January 5, 2022, 3:52am UTC](https://community.sendbird.com/t/view-self-group-channel-api-questions/3701 "2022-01-05T03:52:49Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Fyrankeeevi\_Tse](https://community.sendbird.com/u/Fyrankeeevi_Tse)
#### Post date: [January 5, 2022, 3:52am UTC](https://community.sendbird.com/t/view-self-group-channel-api-questions/3701/1 "2022-01-05T03:52:49Z")
Hi there. I am using Platform channel API for implementing sendbird application, mainly this api( **GET https://api-{application\_id}.sendbird.com/v3/users/{user\_id}/my\_group\_channels**
)
I would like to get the unread message count or the last message I read in this channel. However, I have the following questions.
1. With queryString “custom\_types” and “channel\_urls” for the above api, I am able to filter out 1 specific channel. But the response I get, “unread\_message\_count” is always 0. Why does it happen
2. For the same api and the same query string, I also see the “user\_last\_read”. When will it get updated?(eg. calling some apis? perform certain operations?)
3. For the response of the message list, I wanna ask if the message.created\_at will stay unchanged right?
Thank you very much for your time!
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### Author:  [@Alex\_Preston](https://community.sendbird.com/u/Alex_Preston)
#### Post date: [January 6, 2022, 7:46pm UTC](https://community.sendbird.com/t/view-self-group-channel-api-questions/3701/2 "2022-01-06T19:46:51Z")
Hey @Fyrankeeevi_Tse,
I will answers these as best I can.
1. Do you know if both or more parties have read all messages in a channel? Or can you describe more of the relation of the users in the channel?
2. I do not see that specific key in the results of `my_group_channels`. Do you mean read\_receipt? That corresponds to when the individual users device calls `MarkAsRead()` in the SDK.
3. Message created at will not change. Can I ask what instance did you think it might change? The value of `updated_at` will change depending if the message is updated but created at wont change.