Optimum version 2014.6.5.0When do import excel file for Customer & Supplier, after field mapping, click "Import", got:"Value cannot be null.Parameter name: ControlAccount"What does this mean? how to resolve this?
According to the messange "Control Account", it means there is no "Debtor Control Account" in your excel file. You can specify the Default in the setting Maintenance>Default interface Account before you do the import. thanks. Please let me know after you do the above whether you manage to import or not. thanks.