What does "Please update my online sheet" mean?

CatSusk
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Hi,
I have a master Smartsheet that gets input from several "feeder" sheets.
Occasionally I get a message with a subject line that reads "Update request for XYZ Marketing Intake: Alert: ABC received - to first review team".
The body copy says "Please update my online sheet".
I have no idea where it's coming from or what it means. I've had it come from 2 different companies and when I asked one of the them, they didn't know what I was talking about.
Answers
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It sounds like an update request, which can be invoked manually on a row:
Or automatically with an Automation:
This is what it looks like in the email inbox: