I am a newbie. Any help would be much appreciated.

[#1]

From the Dimension of Items I only want those that begin with 'WO*'. This Expression isn't working:

WildMatch('WO*',[Item.Full Name])

[sunny_talwar · Accepted solution]

Try this may be

If(WildMatch([Item.Full Name], 'WO*'), [Item.Full Name])