Using intrinsic functions get an item formatted YYMM from the context object EnteredTime.
Using Step Functions intrinsic functions you can get from the context object EnteredTime an item formatted like YYMM. This way you don't need to use a lambda function to produce that. This is using many nested functions to parse the EnteredTime variable that looks like this: 2019-03-26T20:14:13.192Z. First it splits it using the T and then it gets the first two element from the first array.
Use intrinsic functions to get an item formatted YYMM from the context object EnteredTime
States.Format('{}{}', States.ArrayGetItem(States.StringSplit(States.ArrayGetItem(States.StringSplit($$.State.EnteredTime, 'T'), 0), '-'), 0),States.ArrayGetItem(States.StringSplit(States.ArrayGetItem(States.StringSplit($$.State.EnteredTime, 'T'), 0), '-'), 1))
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