If you are a user of NetSuite Journal Entries, and you use them for Accounts Receivable, you will want them to reflect in Kolleno.
In the Customer Hub, Kolleno shows the Journal Entries on the right-hand side:
Please note that Kolleno imports both debit and credit, as long as the journal entry line is linked to an "Accounts Receivable" account and the customer is linked in the "Name" column.