Zero Amount Instant Invoice

Hi Team

Greetings

We have created zero amount instant invoice, status for it is “PostedAuth”.

However, we cannot create a offset for it as on all screens relating to a customer payment entry (mixed payment and customer payment) payment with zero amount is not allowed in IFS.  

Now, if we want to change the status to “PaidPosted” for this zero amount instant invoice. Is there any work around or a way to make to “PaidPosted”?

Thanks & Regards