1. Save and close the import parameter
2. Open the CSV import file in Excel
3. Place an apostrophe in front of the leading 0 of the account number
Example: '01-1000-00
4. Save and close the sheet as a CSV file.
5. Validate the saved import parameter. The error is now resolved.

Alternative solutions:

1. Save and close the import parameter
2. In General Ledger, Records, Accounts, attempt to locate the account.
3. If the account does not exist, choose to add the account or change your import file to an existing account.

OR

1. Remove the account number from the cell that is causing exceptions.
2. Reenter the account number
3. Save and Close the import file
4. Run the import.