If the Memo field is your only criteria, then just use the Transaction
Report and use the Filter tab for your Memo text.
Note, you'll need to decide which account you are summing on the report
though. (likely the same issue with the Account Report) In the case of
multiple expense accounts for
I'd like the sum of the values from entries with certain criteria in
the "Memo" field in an expense account. I can get the list of
transactions containing these entries by searching the Memo field.
Then, everything I found says I can open a Report > Account Report to
get the running balance/t