Probably better to PADR() or PADL() with 0's than use a format string that injects spaces. That just looks weird. :-)

I think I'd use

lcId = SYS(2015) + PADL(Application.ThreadId,5,"0")

Actually I think you might need 6 characters - I frequently get 5 digit values in the upper 5 digit range. In theory threadID is a DWORD so that number COULD get VERY large. In reality though I've never seen a 6 digit threadID - anyone?

+++ Rick ---

><snip>
>>

>>lcId = SYS(2015)+TRANS(Application.ThreadId)
>>

>>
>>Unfortunately this also changes the size of the id and because the value isn't a fixed length it's harder to optmize the id. ThreadIds can be up to 5 digits wide.
>>
>
>You can easily make it a fixed length.
>
>

>lcId = SYS(2015) + TRANSFORM(Application.ThreadId, "@L 99999")
>