I have used the csv format for uploading the purchase data for suppliers. separate files were created for each supplier. sut all of them got posted in one account in qb ?

Hi there, usergeorgemaybin.

Thank you for posting here in QuickBooks Community. I'll provide information about importing data in QuickBooks Online.

The information that appears in QuickBooks Online depends on how you upload the purchase data or bills for a supplier. With this, posting account of the transactions depends on how you map the accounts in CSV before you import the data. 

I'd suggest using the correct format to complete the details and map the items correctly. After that, you'll need to ensure that the CSV file does not have any extra special characters or spaces before and after the names. Please note that you'll have to use the accounts that are existing in Charts of accounts from QuickBooks Online. This way, the entries will post to the correct accounts. To see more information and to correct mapping for importing bills, you can click this article: Import your bills in QuickBooks Online.

Please refer to this article for different frequently asked questions about importing data to QuickBooks Online and how it works: Common questions about importing data to QuickBooks Online.

If you have any other follow-up questions, let me know by commenting below. I'm always here to answer it for you. Have a great day!