You can add an allocation note when adding funds to an event.
You must be a Go Methodadmin to do this.
Donations made to an overall trip are designated as unallocated funds, meaning they have not been assigned to any particular participant. These funds may be added manually to any participant account by the event's admin or a trip leader with the appropriate permissions.
Go to Events > My Events.
Click on the event.
Click the Funding tab.
Click Add Funds.
Enter the donation information.
When entering the donation information, leave a note under the Note section.
Click Add Funds.
The note will now appear in the funding details page. To view the note, click the line item to view the options menu and click the Notes button.