1. Open the transaction grid in the NetCommunity or Online Express plugin respectively in The Raiser's Edge
  2. Click the Find Funds button
  3. Click on the Fund column cell in the popup window
  4. Press the F7 key (for PC) or Fn + F7 (for Mac)
  5. Search for the appropriate fund
  6. Choose the fund
  7. Click the Open button
  8. Click OK to finish linking the fund
The fund should now be linked properly to the transaction.