I got it working... 😀

My images go to images/sku/account where sku and account are variable I fee to the function.

// Automatic FlutterFlow imports

import '/backend/backend.dart';

import '/flutter_flow/flutter_flow_theme.dart';

import '/flutter_flow/flutter_flow_util.dart';

import '/custom_code/actions/index.dart'; // Imports other custom actions

import '/flutter_flow/custom_functions.dart'; // Imports custom functions

import 'package:flutter/material.dart';

// Begin custom action code

// DO NOT REMOVE OR MODIFY THE CODE ABOVE!

import 'dart:io';

import 'package:firebase_storage/firebase_storage.dart';

import 'package:image_picker/image_picker.dart';

Future<String> customUploadImage(

String? sku,

String? account,

) async {

// select an image from the gallery and upload to firebase

// Create an instance of Firebase Storage

final FirebaseStorage storage = FirebaseStorage.instance;

// Create an instance of ImagePicker

final ImagePicker _picker = ImagePicker();

// Pick an image from the gallery

final XFile? image = await _picker.pickImage(source: ImageSource.camera);

// Check if an image was selected

if (image != null) {

// Create a reference to the image in Firebase Storage

final Reference ref = storage.ref().child(

'images/$sku/$account/${DateTime.now().millisecondsSinceEpoch}.jpg');

// 'users/uploads/${DateTime.now().millisecondsSinceEpoch}.jpg');

// Upload the image to Firebase Storage

final UploadTask uploadTask = ref.putFile(File(image.path));

// Get the download URL of the uploaded image

final TaskSnapshot downloadUrl = await uploadTask.whenComplete(() => null);

// Return the download URL as a string

return downloadUrl.ref.getDownloadURL();

}

return \"Error\";

}

Change Firebase file path