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tomcollins upsert sets Last Modified fields even if nothing changed?
I think I'm seeing behavior where the system sets the Last Modified fields of a group of records when I do an upsert, even when I have only modified some of the records.
I'm using a SOQL statement to load an array of records. I go through that array and make changes to some of the records. I then upsert the array. I'm seeing all of the records get their modified date/user set in that process.
Am I supposed to create another list of modified records, and only do the upsert on them?
Yes, I think that is how it behaves. Ditto when you go to some record's edit page, make a blank update (hit update without actually changing anything) and it still updates the last modified date.