Hello Sonia,
Who told you to update every client? If you check the dates on the posts before yours, the hot fix was available before the 19th - and the question about the message was answered within minutes.
There is also a
very fast way to do this kind of update in Adagio - one that we cover in every training session.
- Open SmartFinder and select the customer number and field you need to change (in this case the salesperson).
- Select the records you need (in this case where salesperson is equal to blank)
- Send the resulting list to Excel
- In Excel change the data and save the sheet.
- Backup your Adagio data (using File | Backup)
- Import the Excel spreadsheet (using File | Import) selecting the worksheet you just saved, a header row, overwrite only and just fields on the sheet (in this case customer and salesperson).
- Check everything imported properly.
Done.
You probably didn't want to know this now though.

Sorry. Hopefully this technique might be useful another time.