I have four fields, a,b,c,d, that I'm summarizing on customer number in a report. I also want to summarize a total of the sums of a+b+c+d for each customer. I've used the formula =Sum([a])+sum()+sum([c])+sum([d]). If a,b,c and d are all present for a customer, the formula works okay. If any of the items is absent, the formula produces a blank. How can I fix this?
Thanks,
jnix
Thanks,
jnix