To use the Animal Sponsorship feature, you must first enable its use for your account. 

Enabling the animal sponsorships feature

To enable the ability to request sponsorships, go to Animals > Sponsorships > Settings. Tick the radio button to enable sponsorships.

Use the sponsorship feature to enter sponsorships manually.

See the chapter, About sponsorship settings in this guide for information about the rest of the selections for sponsorships.