Follow the instructions at https://qfield.org/docs/prepare/picture_path.html?highlight=photo
I write the following route to "Photo naming":
'DCIM / INV / INV_' || (now () || '.jpg'
But it only generates a DCIM folder with all the photos and named JPEG ... as if it wasn't set up:
DCIM / JPEG_20210924091021590.jpg
Where is the error? Do I need to do something else?