Multiple lables Automatic Multiply and Repeat to 12 times in a A3

Question

Hello there all, I've been running all over the net trying to find a solution to make my life a little easier without success so I was hoping that maybe somebody would have an idea of a better way to do this.
I make personalized Tea Labels for a client, 6 different labels per order.
I make these as separate pages in InDesign size 9 cm x 12 cm
Then I need to put each one into an A3 format repeated 12 times with cut lines and a unified background color and save and renamed as the label.
This is how I do it so far:
-          Create the pages in InDesign
-          Export to Acrobat
-          Acrobat > Extract pages as separate files
-          InDesign > Open an A3 Template with the PDF repeated as an image.
-          Replace the Image
-          Save rename and export to PDF
Any help or ideas are really appreciated
Thanks
Tiola

Answer 1

But you don't NEED to export at all.
Make up your 6-page file of one-up labels sized correctly.
Create a new large sheet file, also 6 pages, and add the trim marks and background color (if it's the same for all labels) to the master page, then add ONE frame in the upper left position on the master to hold one label image. Move to page 1.
File > Place.... and navigate to your one-up file. Show import options and pick all pages when you click OK. Hover the loaded cursor in the master frame area and click once to load the first label, then move to each successive page and repeat until you have one label on each page.
On each page, select the frame with the placed label and use Step and Repeat to make your grid.
Done.