@elsamuel it works perfectly when i define it first,
thanks a lot, i appreciate it.
substr1 = (substr(column(“No Backsheet”), 7, 1) == “D”)
substr2 = (substr(column(“No Backsheet”), 7, 1) == “B”)
or1 = or(substr1, substr2)
if (or1)
{
substr(column(“No Backsheet”), 2, 7)
}
else
{
substr(column(“No Backsheet”), 2, 5)
}