There may be situations where you need to update the names for Customer, Vendor & Products in QuickBooks Online.
Steps to modify existing Customer, Vendor & Products Names in QuickBooks Online
Step 1: Use the SaasAnt Transactions (Online) Export feature to export required Customer, Vendor & Products into an Excel File.
Step 2: The file will have a QBID column. This QBID is issued by QuickBooks for each Customer, Vendor & Products.
Step 3: Click on the Modify menu and upload the file.
Step 4: Review and Upload.