Hi Sandeep, whenever we copy any data from any source we are not sure about the spaces into the value. So i feel there may be the data item that you want not duplicate contain any space and making it another explicit value.
So for avoiding above problem use "Trim()" fuction to remove the spaces. Regards Prince On Thursday, December 13, 2012 11:29:58 AM UTC+5:30, sandeep chhajer wrote: > > Dear Excel guru, > > I have tried this data validation to stop duplicate entry as well as : > =and(countif($e$3:$e$500,e3)=1,len(e3)=15) > > Though when some is making manual entry its working fine but it stops > working if someone copy from above or somewhere else. > Can I do something to stop this!! > > Please help. > > Sent on my BlackBerry® from Vodafone -- Join official Facebook page of this forum @ https://www.facebook.com/discussexcel FORUM RULES 1) Use concise, accurate thread titles. Poor thread titles, like Please Help, Urgent, Need Help, Formula Problem, Code Problem, and Need Advice will not get quick attention or may not be answered. 2) Don't post a question in the thread of another member. 3) Don't post questions regarding breaking or bypassing any security measure. 4) Acknowledge the responses you receive, good or bad. 5) Jobs posting is not allowed. 6) Sharing copyrighted material and their links is not allowed. NOTE : Don't ever post confidential data in a workbook. Forum owners and members are not responsible for any loss. --- You received this message because you are subscribed to the Google Groups "MS EXCEL AND VBA MACROS" group. To post to this group, send email to excel-macros@googlegroups.com. To unsubscribe from this group, send email to excel-macros+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/excel-macros?hl=en.
