Check Missing ID

Hi Miss_A ,

You can use your existing table in Power Query to create a combined table and then merge them. After the merge, the null in the expansion is the Missing ID and the corresponding location.

Here's an example.

Table (1) is the main table.

1.Copy the primary table, and then remove the columns and remove the duplicate rows to get the unique location column.

2.The same operation yields Table (3).

3.Add a custom column in Table (2) to reference the Table (3).

4.Expand it and then merge with the main table.

5.This is the final result.

Best Regards,

Stephen Tao

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.           

Thank you.