How do I import Item List/Construction Cost Codes into Quickbooks online?

You can refer to this QuickBooks help article for more information on how to import item list (Products and Services) into QBO:
https://quickbooks.intuit.com/community/Help-Articles/How-to-import-products-and-services-from-Excel...

Hi Mate

Have you worked that out? Have you got a list of codes on a spreadsheet that you uploaded to quickbooks online.

Im having trouble sorting this out. 

Cheers

Z

Hi Z89,

You can import products and services from text files or Excel spreadsheets into QuickBooks Online (QBO). For your reference, you might want to download a sample file here. 

You'll want to ensure to map the information correctly and avoid any special characters for smooth importing process. See the approved characters list for more details.

To import:

1. From the Gear icon and select Import Data.
2. Select Products and Services.
3. On the Import products and services page, select Browse.
4. Then, follow the onscreen instructions to import products and services.

Learn how to import your products and services from Excel file through this link: Import products and services from Excel.

I'm also sharing this article in case you want export reports, lists, and more in QBO.

Keep us posted if you have further questions. We're here to help.