A Better Finder Rename automatically resolves file name conflicts by adding one or more “distinguisher” characters at the end of the conflicting file names.
Let’s say you remove the last digit from the following file names:
Image1112.gifImage1113.gifThe new file names would become:
Image111.gifImage111.gifwhich isn’t possible because within each folder only one file can have a particular name.
In this case, A Better Finder Rename resolves the conflict by adding a distinguisher to the end of the file names:
Image111 (a).gifImage111 (b).gifYou can configure exactly how file name conflicts are resolved.
The conflict resolution is, by definition, applied as the last step in the process, so you can’t change the distinguisher text that it produces by using other actions.