If you are unable to send image attachments in the Microsoft Teams app on your Android mobile phone, it could be related to the settings for file sharing in large group chats. When there are more than 100 participants in a chat, the default setting for file sharing may restrict access, causing issues when trying to send files. In this case, participants might need to request permission to access the shared files, which can lead to difficulties in sending attachments.
Additionally, if you are experiencing connectivity issues with the Teams app itself, ensure that your mobile device has a stable internet connection and that the app is updated to the latest version.
For further troubleshooting, you may need to collect device logs to diagnose any underlying issues with the app on your device. This can be done through the Microsoft Teams admin center by selecting your device and downloading the logs for support purposes.
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