Leading zeros removed from Report level but show up in Publication Dynamic Recipient List

Hi All,

I have create a Webi report to use as a dynamic recipient email list for a publication. It only has three columns of Customer Number, Customer Name, and Customer Email. The problem is the Customer Number has four leading zeros and I used =Right([Customer Number - Em - Key];6) to get rid of them at the report level, but then when I go to attached this report to the publication in the Dynamic Recipient List area the zeros show again and will not send out the source report. (see pictures below please).

Any ideas will be truly appreciated!

Thank you,

Erin