Is there any way to automatically stop the labeling job?

Hello all,
I have a labeling job with about 40k images for labeling which I requested a vendor to work on, to control cost to fit within my budget, I wanted to automatically stop the job every 3k images being labeled, and may come back to get more labels more later when new budjet comes in, is there any way I can automatically stop the labeling job? or will I have to constantly monitor the labeling progress?

Thank you!

Jenny