I have the following data in Columns A and B. I would like to write code for
all rows in columns A and B that:

delete the rows for Example1 since the values in Column B are the same
delete the row for Example 2 since it only has one value
keep the rows for Example 3 since the values in Column B are NOT unique
delete the rows for Example 4 since the value in Column B are the same

Column A ColumnB
Example1 Create PO
Example1 Create PO
Example1 Create PO
Example2 Create PO
Example3 Approve Invoices
Example3 Approve Invoices
Example3 Create PO
Example4 Approve Invoices
Example4 Approve Invoices


Thanks!