First thing to check would be to see if GetSummary ( summaryruntotal_amount ; Journal::date ) returns a value. You can check this in the data viewer if you have FileMaker Advanced and you can define a calculation field to test this if you do not.
Thank you PhilModJunk - I still get a blank result. The summaryruntotal summary field is showing the correct values, but the get summary function in the number field is not grabbing the values.
GetSummary typically returns a null result for two possible reasons. both involve your break field, Journal::Date:
a) The break field and summary field are not defined in the same table and referenced from the same table occurrence. If your current layout is not based on Journal, the expression you tried will not work.
b) The current found set is not sorted in a sort order that includes the break field. Did you sort your records by the Journal::Date field?
Apparently, my problem is a). I don't know why this is the case, as it worked every year in the past. Thanks for the tip.