I am getting an error about the properties, and I cant get it to work.
Expand the company section at the top by clicking it. You’ll see that for an import to update companies, you either need a column with the record ID or company domain name.
If you do not have that, go back to the start of the import process and choose to create or update company records.
As a best practice, all company imports should contain a column for ‘Company domain name’, as HubSpot uses this for deduplication.
Best regards