EMPLOYMENT HERO PAYROLL JOURNAL

Good Afternoon all,, I'm importing a Payroll Journal from Employment Hero which I'm being told is compatible with MYOB AccountRight Plus but I cannot find a field to match with "Is Credit"? I can see on MYOB Help that this is an option for a General Journal Import but it is not appearing in my selection when I import the Payroll Journal. I have tried both General Journal and Transaction Journal and have the same issue with both, the MYOB Help screen says I should have an import field in MYOB for 'Is Credit' to match to? If anyone has any help or advice for me it would be greatly appreciated!