Quick help with a mask

I can't get it to work for some reason. I want to create a mask for Canadian Postal Codes as follows
A1A 1A1

I can't get the pattern set correctly. I've tried various regex patterns, but they all fail after the space. The last one I tried was a mask of *** *** with a pattern of:

Honestly I'm just looking for something simple like [A-Z][0-9][A-Z] can anybody help me out here?

Hi @kgordon,

Are you trying to allow only letters and only numbers at specific position in the mask? This is not supported at the moment. The Pattern will be used to check if the symbol is allowed in general but not on specific position.

Ahhh, okay. That explains it.