iOS Question make services in my app

[azzam223]

if i want to make some services in my app like translate document or design photo must i create it through in-app payment
because i create app have services like translate and design but i add direct link to paypal not api but it is rejection i did know what the happen but he said you use api payment

i make this services then i send it the customer

 

[Erel]

The relevant guidelines are here: https://developer.apple.com/app-store/review/guidelines/#payments

Specifically see this section: Physical Goods and Services Outside of the App