I had a training session yesterday where I had people submitting forms all at the sametime. I am using this code to automatically generate filenames from the permit number data field textbox concat("CP- 14 - ", max(ID) + 1) ...where as "CP" stands for commercial propagation and 14 is the year of course..Well this solution works fine if only one person is submitting forms one at a time..But in my training session where I had 6 people submitting forms all at ounce this totally bombed. Are there some rules or something I can add so wwhen multiple people are submitting forms at the same time this solution will not totally bomb out.