Additional Settlement Transactions on Vendor Account D365

Hi,

I have tried to research this but keep coming up short. We are in the process of UAT in D365 and I've noticed that when settle transactions on the Vendor account, another 2 transaction lines post on to the Vendor Account. Does anyone know if this a parameter setting that is causing this?

We don't have the 'Automatic Settlement' parameter on if this helps.

Any help will be appreciated.

Thanks,

Claire