How can I set unit in a cloudwatch math expression?

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I have a clouwatch math metric e1 that is SUM([m1,m2]). m1 and m2 have CloudWatch Unit of Milliseconds but the SUM expression has unit No unit.

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Is there any way to assign a units to math expressions in CloudWatch? I want to show e1,m1,m2 in the same chart and it says Various units in the Y-label axis instead of saying Milliseconds

1 Answers

The only workaround that I know is to go to the chart Options and set Left Y axis Label to Milliseconds and unchecking Show units. This does not actually give the match expression a unit but it shows ok in the chart.

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