Canon EOS REBEL T7I Wi-Fi (Wireless Communication) Function Instruction Manual page 106

Sending Images to a Web Service
With a Wi-Fi connection to a Web service established, a picture cannot

be taken even if the camera's shutter button is pressed.
RAW images cannot be sent.

When sending an image to a Web service other than CANON iMAGE

GATEWAY, a send error message may not be displayed even if the
image has not been sent to the Web service successfully. Such errors
can be checked on the CANON iMAGE GATEWAY site; check the error
content, then try sending the image again.
Depending on the Web service, the type or number of images that can

be sent and the length of movies will be limited. In addition, some images
may not be sent with [Send range], [Send all card], or [Send all found].
When you reduce the image size, all images to be sent at the same time

are resized. Note that movies and b size still photos are not reduced.
[Resize:S2] is enabled only for still photos shot with cameras of the

same model as this camera. Still photos shot with other models are sent
without resizing.
When accessing CANON iMAGE GATEWAY from a computer or other

device, you can check the send history for the Web services that the
images were sent to.
To terminate the Wi-Fi connection without sending an image, press the

<M> button on the screen for step 1.
When you use a battery to power the camera, make sure it is fully

charged.
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