To resolve the Quickbooks Error 6123, follow the steps as:
• Open the company file folder. • Select your company's appropriate. ND file. • Right press on the file of the business and choose Rename. • Rename. ND to the. ND.OLD file. • Select the. TLG file and the. TLG file rename in the same way. • Rename. TLG to the. TLG.OLD file. • Now, open your company file for QuickBooks.