The QuickBooks Error Code 3100usually triggers when someone tries to add a new customer to the records. If the Employee, vendor, or customer exists inside the description of creating a customer, then this error triggers.
This QuickBooks software takes a uniquely designed full name in Employee, vendor, or customer data and includes both Active & Inactive records. Following are the fundamental causes that trigger Error Code 3100:
Damaged or Corrupt Window Registry
Incomplete or Corrupt installation of QuickBooks Software.
Injurious Attack of Malware & Viruses interrupting files of Windows.
Accidently deleted programs or files of QuickBooks.