This QuickBooks Error Code 6240 occurs when you try to enter a name which already exists in a QuickBooks account. QuickBooks require unique identity, so following are common methods to resolve this error code:
Rename the existing record, or you can
Provide a different or unique name
If both of these didn’t work out to eliminate the error then you need to contact QuickBooks experts. For it dial QuickBooks Error Support Phone Number 1-833-325-0220 and get rid of it precisely and instantly.
How to resolve QuickBooks Error 6240?