How to check for duplicate value in field...?

HiIs it possible in Notes to force a user to type in a unique value in a field…say they create a to do and say get docs…need to prevent them from using same text again??

Hope it makes sense.

Coll

Subject: I am not sure what are you trying to do but…

If it is a multivalue text field ,you can use @Unique(@ThisValue) in “Translation Formula” fro the field

provided that user input is staored as separate list member for each line.

Subject: RE: I am not sure what are you trying to do but…

Thanks…would you then use it with @Dblookup to confirm that it has not been used yet?What I need to do is this…

I have a To Do, each user enters a description…the problem I am having is that these to do’s are linked to emails via to do description and when you display related emails to the to do in an single categorised embedded view, it displays all mails with that specific description even tho they are actually not related…hope this makes sense.

C