02-02-2009 07:50 AM
02-02-2009 07:57 AM
During the import wizard on the mapping page you can preview the data to be imported by using the arrows above the mapping section, this can help to identify potential failures. Secondarily keep in mind that if your importing from .csv then commas and some other special characters can cause an import to fail. One suggestion would be to reduce the size of the import to make it easier identify data issues.
The preceeding KB might help you in identifying some of the common issues with data imports.