If a source or destination code has been used previously but is no longer being used, it can be removed from the drop-down lists to prevent its use.
Below are the steps for removing either a single source/destination code or multiple in bulk.
Remove a single source or destination code
On the Finance ribbon tab, click the Admin drop-down arrow.
Choose either Source or Destination, then click Edit.
On the Details tab, select the Exclude from drop down list checkbox.
Click Save.
Remove multiple source or destination codes
On the Finance ribbon tab, click the Admin drop-down arrow.
Select either the Source or Destination button.
Select the records for the codes you want to remove.
Click More, then Global Update.
Set Field to Update to Exclude from drop down list and set New Value to selected.
Click Ok to update all selected codes.
📌 Note: Removing codes from the drop-down lists does not delete them; it only hides them from future use.