Getting the earliest modified Date

Was I not clear?

Hello Anonymous 

for this you need some coding and use a Table.Group with List.Min function and a NestedJoin to join the result to your original table.

Here the complete solution

let
	Source = #table
	(
		{"Ticket#","ModifiedDate"},
		{
			{"181234","43597"},	{"181234","43567"},	{"181234","43597"},	{"181235","43597"},	{"181235","43567"},	{"181235","43536"}
		}
	),
    ToDate = Table.TransformColumns
    (
        Source,
        {
            {
                "ModifiedDate",
                each Date.From(Number.From(_)),
                type date
            }
        }
    ),
    Group = Table.Group
    (
        ToDate,
        {"Ticket#"},
        {
            {
                "MaxDate",
                each List.Min(_[ModifiedDate]),
                type date
            }
        }
            
    ),
    NestedJoin = Table.NestedJoin
    (
        ToDate,
        "Ticket#",
        Group,
        "Ticket#",
        "MaxDate"

    ),
    Expand = Table.ExpandTableColumn(NestedJoin, "MaxDate", {"MaxDate"}, {"MaxDate"})
in
	Expand

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Have fun

Jimmy