Listening for transactions updates

I'm a really new one in swift and xcode... but I got into it, and maybe this is a silly question, but I'm getting that error, and I just can't figure it out... I created an iapManager.swift and add a task to it... but somehow, I still having that error... any help would be appreciated. Cheers,

Would you kindly share the exact error message and as much code that triggers that error as possible? Without this additional information it's impossible to diagnose the issue.

thank you for your kind answer... actually I'm not getting the error... I'll write the code anyway... maybe it's a poor approach I made to solve it... but the error dissapeared... I implemented this code:

/// Unlocks an option and saves it
 private func unlockOption(for productID: String) {
     if productID == "com.myapp.optionB" {
         optionBUnlocked = true
         UserDefaults.standard.set(true, forKey: "optionBUnlocked")
     }
     if productID == "com.myapp.optionC" {
         optionCUnlocked = true
         UserDefaults.standard.set(true, forKey: "optionCUnlocked")
     }
 }
/// Persistent transaction listener
  func listenForTransactions() async {
      for await verification in Transaction.updates {
          switch verification {
          case .verified(let transaction):
              unlockOption(for: transaction.productID)
              await transaction.finish()
          case .unverified(_, _):
              print("Unverified transaction update.")
          }
      }
  }

I put it in the main.swift file... that made the difference... initially it was in a storekeit file.. with this kind of code:

@MainActor
class StoreManager: ObservableObject {
static let shared = StoreManager()

@Published var optionBUnlocked: Bool = false
@Published var optionCUnlocked: Bool = false

private let productIDs: Set<String> = ["com.myapp.optionB", "com.myapp.optionC"]

init() {
    Task {
        await listenForTransactions()
        await restorePurchases() // Ensure previous purchases are restored at launch
    }
}

but it was not working.. the error was a warning from xcode... "Making a purchase without listening for transaction updates risks missing successful purchases. Create a Task to iterate Transaction.updates at launch."

Now I'll try to set up a suscription... we'll see...