Add specific text to a row, if a condition is met in another column in the same row?



I would like to have Smart Sheet add the words "Bad Index" in the status column if index column is "647373". I can use conditional formatting to highlight the row, but when I try to use an automation trigger the whole column displays "Bad Index".

This is my workflow.

When I run the automation it marks the entire status column as "Bad Index" instead of the specific row.

I only want row 20 to show "Bad Index".