Other than through program code, is there a way to change the default value of the Flushing Method Filter in the Production Journal?
I only know a programmer has to get involved.
Only Flushing Method=Manual can be posted in the Production Journal. So do not change the logic there. The possibility to filter on other Flushing Methods is just to inform the user whenever needed. Forward Flushing means consumption will be posted when Production Order is Released, Backwards will post consumption when order changes status to Finished etc. So do not change the default value when opening Production Journal. What is the reason you would like to change?
The users are changing the filter to see backflushed lines so that item tracking can be added.
Then their Flushing Method should be Manual, not Backward.