This is something we’ve just started figuring out ourselves! We haven’t come across stock yet, so this is only for DAF gifts. I enter the payment method in the way we received it (check or ACH, typically). In the Payment Description field, I enter that it was via a DAF. Our newest addition to the process is a custom field where we enter where the DAF is held (Fidelity Charitable, for example) and any other information that comes with the gift. We have had instances in the past where we don’t get anything other than where the DAF is, so having this information lets us search past gifts to narrow down possible donors.