The bot is not part of conversation roster error in Adaptive card message to Teams in flow

[DHJagath]

I made two actions in a flow in Power Automate.

1. Post a message to a Teams channel

2. Post an Adaptive Card to Teams channel

I got an error in the Adaptive card message.

"The bot is not part of conversation roster"

Please help me to find the reason and a solution.

[#2]

@DHJagath We could not repro the issue on our side. Could you please share more details on the issue? Please share the adaptive card json.

[#3]

@Gousia_Begum 

encountered the same

{
"$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
"type": "AdaptiveCard",
"version": "1.0",
"body": [
{
"type": "TextBlock",
"text": "This is some **bold** text"
},
{
"type": "TextBlock",
"text": "This is some _italic_ text"
},
{
"type": "TextBlock",
"text": "- Bullet \r- List \r",
"wrap": true
},
{
"type": "TextBlock",
"text": "1. Numbered\r2. List\r",
"wrap": true
},
{
"type": "TextBlock",
"text": "Check out [Adaptive Cards](http://adaptivecards.io)"
}
]
}

[#4]

I have the same issue here.

[#5]

@Deleted 

I am still experiencing this issue. Has there been a resolution?

[#6]

@Dynamics_enValuable 

Is the channel your are trying to post to a Private Channel? 

If so, I believe this is because the "bot" user is not part of that private channel, and there is no way to add it.  I am experiencing the same issue.

[#7]

@KeithHiggins no it is not using a private channel. Also, some some messages come through, some not.