In your action the folder path is missing. The paths are interpreted by the OS so ./ is not a file’s containing folder. The folder path can be extracted via a Get Property statement or inline via an escape sequence.

Download the zip at:

https://2manyrobots.com/actions/Save-to-folder.jpg-(if-necessary).zip

The zip contains two actions:

Save folder.jpg (if necessary) - efficient (Version 1.0)
Save folder.jpg (if necessary) - slow (Version 1.0)

The ’slow’ one is almost the same as yours but tests for every selected file.

The ‘efficient’ one only tests each folder once.

As far as having it run whenever you save a file, you can specify and action in Settings-Actions-General-Auto-run on Save

Note that the setting is only honoured for certain save operations. Do a Help>Search Yate Help and search for the Automatically Running an Action When Saving Files topic for additional information.

While you can only specify one auto-save action, you can always specify an action which calls others.

This is great. It's exactly what I asked for.

However, I now realise that I only want it to run if all loaded files are already in the the same folder.

This is in relation the "Auto-run on save" option. I don't want it to run if I am bulk editing a lot of folders.

I'm trying to figure it out myself but I'm struggling a bit with it.

Ok, I think I figured this out. It's not exactly as I described, but it sufficient for my needs.

I did the following:

Test if the Album field is the same in every file, Set result
if true
    Run action 'Save folder.jpg (if necessary) - efficient'
endif

We're crossing responses. 🙂 Your method will work but only looks at selected files. The one I just sent you looks at all loaded files.

Remember a Save in the UI saves all modified files even if not selected.