F-32 Clearing Populating Assignment field

Hi All,

We have a scenario, where we need to do clearing in F-32.

When invoices are cleared in F-32, the Assignment filed in one of the line items, of the documents being cleared should be populated with a unique number .

The assignment fields needs to be filled with a unique identifier in all the invoices being cleared and also in the line item of the clearing document that is to be posted.

This way we want to achieve automatic clearing. Hence, when we post using F-32, we want to have such functionality.

Can anyone let me know if this is possible and how..

Thanks

Kris..