Mobile phone waterfalls may have disappeared if the column was deleted or if the waterfall configuration was removed. You can try these steps to get them back:
Check the Trash: If the table or column was recently deleted, look for it in the "Trash" tab in your main workspace. There, you can restore the table or column if it’s still there .
Recreate the Waterfall: If the column is gone, you can add a new column to your table and select "Waterfall" as the type. Then, configure the data type (like phone number) and set up your providers again [1].
Edit Existing Waterfalls: If the waterfall column still exists but the data is missing, click on the waterfall result column and select “Edit Column” to adjust or re-run the waterfall [2].