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Question on Sequence of Field Updates in a Workflow

I need help understanding what determines the sequence in which multiple field updates tied to a single workflow rules would execute.  I understand that I can turn on the debug log and see the order in which they get executed.  Is it possible that the same configuration setup in two different orgs could result in a different order in which the field updates run?

The problem I'm having is that I am trying to update multiple values on a parent record in an M/D relationship.  I had to write the formulas in the field updates differently because in org A, three updates ran in 1, 2, 3 order whereas in Org B, they ran in 3, 2, 1 order.  Is this really possible or is it a result of other changes that I have made.

If you search help and find the question, "In what order are automation rules and Apex triggers processed?", in the Additional Notes section there is a comment stating "There is no way to control the order of execution WITHIN each group..."

Any input is most appreciated.


There is no deterministic order in which field updates are processed.  You can consider them to be processed in parallel, so whichever finishes first finishes first.