https://www.wix.com/velo/reference/wix-paid-plans-backend/events/onplanpurchased
event.orders…
Hey @subasskutti 
You can retrieve it from the triggered event . Then use the getUser( ) to get his full details.
// Backend: events.js
import { getUser } from 'wix-users-backend';
export async function wixPaidPlans_onPlanPurchased(event) {
const user_id = event.order.memberId;
const plan_owner = await getUser(user_id);
}
Hope this helps~!
Ahmad
i got a error by using (await)
@subasskutti
Inspect first the result what you get from → EVENT.
Check if → event.order.memberId ← is given in the result.
What do you get as output for → userID ?
Place perhaps a second → AWAIT, like in the example and test it again…
export async function wixPaidPlans_onPlanPurchased(event) {console.log(event);
const userID = await event.order.memberId; console.log(userID);
const planOwner = await getUser(userID); console.log(planOwner);
}
@subasskutti that’s definitely because you didn’t change the function into an async function. Notice the orange keyword.
export async function wixPaidPlans_onPlanPurchased(event) {
}
@russian-dima async/await is used with functions that returns a promise, accessing a property does not require using await.
@ahmadnasriya You might be correct → but for those, who do not know, if you have a promise in the situation or not, just to be sure, that it will work, i just place an additional AWAIT 
→ it does not crash the code. Unneccessary → yes perhaps, but secure 
@russian-dima this is a bad practice, to use await you must change the function to an async one, which makes the function returns a promise.
You should always know what type of response the function returns (void/promise), and write your code according to that.
@ahmadnasriya How do i know that ? Just always by taking a look into the API-DOCs?
thanks bro
this my mistake ididn’t type async
@russian-dima you can know the response type by looking at the function itself.
You’re welcome 
Did this solve your problem?
@ahmadnasriya no bro i got one more error
Cannot find module ‘wix-users-backend’ in ‘public/pages/gdsrt.js’
@subasskutti as the documentations state, the events must reside on the backend in a file called “events.js”.
@subasskutti Please read the APIs docs carefully before using them, it’ll help you avoid getting stuck with simple things.
@ahmadnasriya ok bro i will read