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SP have some restrictions on how to add embedded code. Below are the steps to perform this :
Include the SP site URL in the chat properties
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Follow this guide https://support.microsoft.com/en-us/office/allow-or-restrict-the-ability-to-embed-content-on-sharepoint-pages-e7baf83f-09d0-4bd1-9058-4aa483ee137b and add this “dev.businessgpt.pro“ to the Allow external iframes
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