Search Two Tables by using Two Columns

[PR1762]

I am looking for some advise on how in Power Query I can return a True or False value in a new column in one Table Based on a Search on two columns in that table,  against the same two columns in another table.

i have the same data in two tables however one of the tables has newer data in it, it is the new data I am looking at marking as Ture.

thanks in advance, Paul

[PR1762]

In the table below there are two customer I would like to check all dates to see if there is any change to each date in the second table, however when checking the dates I want to ignore the records where there is a null against a date as this illustrates that no change in dates.  So the first customer would get a false against the filter Keep Record,  however the second customer would have a true set, as the T2.Logon Date has a change to the record in the first table.

Customer ID		123456789		987654321
T1.Registered Date		01/01/2023		01/01/2023
T1.Start Date		01/02/2023		01/02/2023
T1.Order Date		01/03/2023		01/03/2023
T1. Logon Date		Null		Null
T2.Registered Date		Null		Null
T2.Start Date		Null		Null
T2.Order Date		01/02/2023		Null
T2. Logon Date		Null		01/04/2023
Keep Record		FALSE		TRUE

[serpiva64]

Please post some sample data, thank'you