https://community.sinch.com/t5/KakaoTalk/Why-did-my-KakaoTalk-Brandmessage-sent-with-an-image-fail/ta-p/9454 <DIV class="lia-message-template-content-zone"> <P>It is important that your media file complies with the KakaoTalk's criteria, which is defined&nbsp; in the <A href="https://developers.sinch.com/docs/conversation/channel-support/kakaotalk/#media-messages" target="_blank" rel="noopener">Media Messages</A> section of our KakaoTalk developer documentation:</P> <P>&nbsp;</P> <P>Media included in the Media message will be rejected by the channel if:</P> <UL> <LI>the width is below 500px, or if the 'width:length' ratio is below 2:1, or above 3:4 or if the image dimension is not equal to [800px * 600px]</LI> <LI>image file format is different than JPG or PNG</LI> <LI>file size is bigger than 500KB or for image with dimension [800px * 600px] is bigger than 2MB.</LI> </UL> <P>Double check your image and make sure it's in the right format before resending your KakaoTalk Brandmessage.&nbsp; Here are few examples you can use:&nbsp;</P> <UL> <LI>500x1000 px, 500x800 px, 500x500 px, 500x400 px</LI> <LI>600x1200 px, 600x960 px,&nbsp;600x450 px</LI> <LI>720x720 px (Recommended!)</LI> <LI>800x600px (wide image).</LI> </UL> <P><SPAN>The&nbsp;</SPAN><A href="https://developers.sinch.com/docs/conversation/channel-support/kakaotalk/" target="_blank" rel="noopener nofollow noreferrer">Sinch Developer Documentation</A><SPAN>&nbsp;site contains comprehensive documentation that illustrates how Sinch supports KakaoTalk through the Conversation API.</SPAN></P> </DIV> Thu, 30 Oct 2025 12:27:11 GMT Donna_M 2025-10-30T12:27:11Z https://community.sinch.com/t5/KakaoTalk/Why-did-my-KakaoTalk-Brandmessage-sent-with-an-image-fail/ta-p/9454 <DIV class="lia-message-template-content-zone"> <P>It is important that your media file complies with the KakaoTalk's criteria, which is defined&nbsp; in the <A href="https://developers.sinch.com/docs/conversation/channel-support/kakaotalk/#media-messages" target="_blank" rel="noopener">Media Messages</A> section of our KakaoTalk developer documentation:</P> <P>&nbsp;</P> <P>Media included in the Media message will be rejected by the channel if:</P> <UL> <LI>the width is below 500px, or if the 'width:length' ratio is below 2:1, or above 3:4 or if the image dimension is not equal to [800px * 600px]</LI> <LI>image file format is different than JPG or PNG</LI> <LI>file size is bigger than 500KB or for image with dimension [800px * 600px] is bigger than 2MB.</LI> </UL> <P>Double check your image and make sure it's in the right format before resending your KakaoTalk Brandmessage.&nbsp; Here are few examples you can use:&nbsp;</P> <UL> <LI>500x1000 px, 500x800 px, 500x500 px, 500x400 px</LI> <LI>600x1200 px, 600x960 px,&nbsp;600x450 px</LI> <LI>720x720 px (Recommended!)</LI> <LI>800x600px (wide image).</LI> </UL> <P><SPAN>The&nbsp;</SPAN><A href="https://developers.sinch.com/docs/conversation/channel-support/kakaotalk/" target="_blank" rel="noopener nofollow noreferrer">Sinch Developer Documentation</A><SPAN>&nbsp;site contains comprehensive documentation that illustrates how Sinch supports KakaoTalk through the Conversation API.</SPAN></P> </DIV> Thu, 30 Oct 2025 12:27:11 GMT https://community.sinch.com/t5/KakaoTalk/Why-did-my-KakaoTalk-Brandmessage-sent-with-an-image-fail/ta-p/9454 Donna_M 2025-10-30T12:27:11Z