Go to Pricing Options
When adding or editing a pricing option
Under Billing Options --> When will clients first be billed select "Specific date" and select a date in the future
How to sell a specific client a membership that starts at a future date
Duplicate the pricing option you would like to sell them
2. Update the Billing Options --> When will clients first be billed
3. Make hidden
4. Purchase this pricing option for the client on Point of Sale or send them the direct purchase link