The name supplied already exists. : Another product or service is already using this name. Please use a different name.
QuickBooks Online only allows 1 unique product name. If the product name already exists, this error will be given.
ConnectWise PSA: "CCTV Level 2-Onsite | Maintenance "
QuickBooks Online: "CCTV Level 2-Onsite | Maintenance"
1. Verify the Product Name in ConnectWise PSA does not have any leading or trailing spaces
2. If the product already exists in QuickBooks Online, Update the name by Copying the product ID Field from ConnectWise PSA and paste it directly into QuickBooks Online Name Field.
Please review the following articles to resolve the issue.