Understand the choice
A setting of 12 on one grinder does not define the same particle size as 12 on another. Burr geometry, calibration, wear and the coffee itself change the result. Keep a note of the grinder model and any adjustment procedure.
Put it into practice
Change a small amount and repeat the same recipe. Follow the manufacturer’s instruction on whether the motor should run during adjustment; do not force the mechanism.
Keep the conversation useful
Share your actual recipe or experience, identify the coffee or equipment and explain what changed. A clear question with measurements makes the discussion easier for others to answer.