What determines if a cost transfers to Assets?

Summary:

We are trying to determine what logic decides if a project transaction will transfer to assets or will not transfer to assets. We have a document category that we use for accruals. The initial accrual entry is eligible for transfer to Assets, but the reversal of that accrual does not transfer. I asked support for help and they could not help and could not explain why the initial transaction would transfer and not the reversal.

Content (required):

Need to understand how the system determines if a particular transaction will transfer to Assets when it is created so we can adjust business process to allow accurate creation of Project related Assets.