QuickBooks users have recently started reporting error C=51while working on the transactions. This error shows up when there is damage in the company data, or the transactions you are trying to work on are missing from the application. To overcome the error, we have prepared a comprehensive guide that you read by clicking here. For more help resolving QuickBooks error C=51, reach QuickBooks support at +1-800-579-9430. https://qbdataservicesupport.com/blog/quickbooks-error/a-comprehensive-guide-to-quickbooks-error-c51/