Several months ago substantial Gift-In-Kind was processed by our organization incorrectly.  I have now been asked to change the fund to correct the error but the "Fund" field is greyed out and inaccessible.  Is it possble to access that field in order to make the necessary change or, if not, how do I go about correcting this error.

I would create an adjustment to the gift.  Here you have an option to choose a different fund.  (just a side FYI - while the fund is changed on the adjustment tab, if you need to also change the campaign click the split gift tab and change it there)  I always detail the reason for my adjustments for future reference.

 How do I create an adjustment?   Is there somewhere in the original gift itself to create an adjustment?  Is there a reason I can't just delete the gift and create a new one?

You can adjust the gift by 1. Open Gift  2. on the menu open Gift, adjust gift. 

If you adjust the gift, as opposed to deleteing and reentering, you will keep the history of the gift, change etc.  If I just entered a gift in the last day or so and find a large error, I have been known to delete and re enter.  Howeverm you mentioned that it was months ago, so I would opt for doing an adjustment with a carful note as to why the change was made.

I would strongly suggest that you do not delete the gift. I would adjust the current gift to $0.00 if you feel the need to 'get rid of' it.

To adjust - Open the Gift. Under the heading Gift choose Adjust (If you can't adjust - you may need to unpost the gift first)

Make the necessary adjustments. If it is a fund adjustment only, you could keep the gift and just adjust the fund.  If there are many changes to make, I would adjust the dollar amount to zero and then add in a new gift using the previous gift's date with the corrected details.