Sending a Message to the Last Thread in a Channel Using TeamsFx Bot Results in 'Forbidden' Error

Question

I have developed a Microsoft Teams bot application using TeamsFx. This bot communicates with users by sending messages to the channels in the teams where the bot is installed. Whenever the bot sends a message to a channel, the channel displays the new message as a new post. Now, I want the bot to be able to recognize the last thread message in the channel and send the new message to the last thread message. So far, I have written code that enables the bot to find the message ID of the last thread message. Then, I wrote the following code snippet to send the message to the last thread message:

const sendMessageResponse = await fetch(https://graph.microsoft.com/v1.0/teams/${teamId}/channels/${channel.info.id}/messages/${lastChatThread.id}/replies, {

                method: 'POST',

                headers: {

                    'Authorization': `Bearer ${token}`,

                    'Content-Type': 'application/json'

                },

                body: JSON.stringify({

                    body: {

                        contentType: 'html',

                        content: requestBody.text

                    }

                })

            });

However, every time I run the application to send a new message, I encounter the following error: 'Error processing task: Error: Failed to send message: Forbidden'.

Also, here are all the API permissions that I consented to my application:

Channel.Create	Application	Create channels	Yes
Channel.Create	Application	Create channels	Yes

Granted for 2cr0fw
Granted for 2cr0fw

Channel.ReadBasic.All	Application	Read the names and descriptions of all channels	Yes
Channel.ReadBasic.All	Application	Read the names and descriptions of all channels	Yes

Granted for 2cr0fw
Granted for 2cr0fw

ChannelMessage.Read.All	Application	Read all channel messages	Yes
ChannelMessage.Read.All	Application	Read all channel messages	Yes

Granted for 2cr0fw
Granted for 2cr0fw

ChannelMessage.Send	Delegated	Send channel messages	No
ChannelMessage.Send	Delegated	Send channel messages	No

Granted for 2cr0fw
Granted for 2cr0fw

ChannelSettings.Read.All	Application	Read the names, descriptions, and settings of all channels	Yes
ChannelSettings.Read.All	Application	Read the names, descriptions, and settings of all channels	Yes

Granted for 2cr0fw
Granted for 2cr0fw

Chat.ReadWrite.All	Application	Read and write all chat messages	Yes
Chat.ReadWrite.All	Application	Read and write all chat messages	Yes

Granted for 2cr0fw
Granted for 2cr0fw

Group.ReadWrite.All	Delegated	Read and write all groups	Yes
Group.ReadWrite.All	Delegated	Read and write all groups	Yes

Granted for 2cr0fw
Granted for 2cr0fw

Group.ReadWrite.All	Application	Read and write all groups	Yes
Group.ReadWrite.All	Application	Read and write all groups	Yes

Granted for 2cr0fw
Granted for 2cr0fw

Team.ReadBasic.All	Application	Get a list of all teams	Yes
Team.ReadBasic.All	Application	Get a list of all teams	Yes

Granted for 2cr0fw
Granted for 2cr0fw

TeamSettings.Read.All	Application	Read all teams' settings	Yes
TeamSettings.Read.All	Application	Read all teams' settings	Yes

Granted for 2cr0fw
Granted for 2cr0fw

TeamSettings.ReadWrite.All	Application	Read and change all teams' settings	Yes
TeamSettings.ReadWrite.All	Application	Read and change all teams' settings	Yes

Granted for 2cr0fw
Granted for 2cr0fw

TeamworkAppSettings.ReadWrite.All	Application	Read and write Teams app settings	Yes
TeamworkAppSettings.ReadWrite.All	Application	Read and write Teams app settings	Yes

Granted for 2cr0fw
Granted for 2cr0fw

Recently, I added two delegated permissions to my list, as shown, but these newly added permissions did not resolve the 'Forbidden' error issue.