The manual version would be to add a column to your B sheet with a VLOOKUP function/formula in it.
your formula would be something along the lines of:
Where:
A2 is the product that you are checking to see if it is on the Active list.
Sheet1!A:A is the column with the Active products listed (their names / IDs)
1 = the column number that has the data you are looking for - in this case you only have one column in your table, but the VLOOKUP can return any column's data as long as it is in your table
False = Match the item / ID
Copy the formula all the way down to the end of your table.
Sort on the VLOOKUP column - if you sort ascending scroll to the bottom of the list and delete all rows that have a result of #N/A in the column. If you sort descending the #N/As will be on the top.
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