Backup Certain Subfolders...

[GoForIt]

I'd like to backup only certain subfolders of the My Documents folder. Each year I have a folder for invoices called 2024 Invoices, 2025 Invoices, 2026 Invoices. I intend to add a new folder next year and every year following. I'd like to create a sync that can backup C:\Users\username\Documents\20?? Invoices to the corresponding D:\Users\username\Documents\20?? Invoices folder. I understand I can do this by having individual syncs but I'd like to do it as one sync if possible. Thank you in advance for your help.

[xCSxXenon]

Use filters
https://freefilesync.org/manual.php?topic=exclude-files

[GoForIt]

Yes, I tried that but didn't know how to reference the excluded folders or the included ones. Can you help me with what I should put in the include and exclude boxes?

[Plerry]

Filter entries are always relative to the left and right base location.
If you don't know hoe to enter/specify your filter entries manually, you can run a Compare, and in the Compare results right click a subfolder and Include or Exclude that item via the context menu. Repeat according to need.
If you want to re-use the created sync configuration, don't forget to save it via "Save as".