Go to the client's profile that purchased the pack

From the Active Plans section, choose the three dots on the top right of the plan tile

Select Deduct Passes and enter the amount of passes remaining as well as Adjustment name or reason so the total pass count is zero

Select Deduct

Select Buy and choose Plan

Search and select the client's name you want to "transfer" the pack to

Choose the pack you want to add to the client's account

Select Continue

Choose Apply Promo or Discount

Enter 100% and choose Save

Select Buy