Nikon Z 8 Reference Manual page 362

Uploading Photos as They Are Taken
To upload new photos as they are taken, select [Connect to
computer] or [Connect to FTP server] in the network menu and
choose [ON] for [Options] > [Auto upload].
Upload begins only after the photo has been recorded to the memory card. Be sure a memory card
is inserted in the camera.
Videos are not uploaded automatically. They must instead be uploaded manually from the playback
display.
The Upload Icon
Upload status is indicated by the upload icon.
s (white): Priority upload
The picture has been manually selected for upload. Pictures marked with this icon will be uploaded
before pictures marked W ("upload").
W (white): Upload
The picture has been selected for upload but upload has not yet begun.
X (green): Uploading
Upload in progress.
Y (blue): Uploaded
Upload complete.
What You Can Do When the Camera Is
362
Connected to a Computer or FTP Server