I'm tring to create WhatsApp Business Platform API. it return erorr "onboard Please retry in some time or reach support to get issue fixed." I tryed again and again but not solved

I'm creating WhatsApp Business Platform API but it return erorr Onboarding Failure Please retry in some time or reach support to get issue fixed.and not creating App.

Adding a new app review request for increased permissions. It's indicating we need to add app to Page Tab or create a new page... We have created the new page but Page/Tab is depricated so can not proceed.
The manual method of creating a link to the page_id and app id no longer works, and using graph api to POST to /{page-id}/tabs is depricated.
What am I missing for being able to submit a review?

How to upload an image to the Media Library using an HTTP POST request?
I can't upload an image to the Media Library to later be able to use the image hash to create an ad.
I tried using the Graph Explorer: curl \ -F 'filename=@' \ -F 'access_token=' \ https://graph.facebook.com/v/act_/adimages
And also tried to use Make/Integromat with the HTTP Get a File module and then using the Make a Request module to make the following request:
{ "access_token": "", "filename": "{{41.data}}" }

I am trying to add google native ads in my flutter app using this library

https://pub.dev/packages/google_mobile_ads

i am getting this error:

\[log\] NativeAd failed to load: LoadAdError(code: 0, domain: com.google.android.gms.ads, message: Internal error., responseInfo: ResponseInfo(responseId: _-SvZbabD5e-3LUP4oaxkAs, mediationAdapterClassName: , adapterResponses: \[AdapterResponseInfo(adapterClassName: com.google.ads.mediation.admob.AdMobAdapter, latencyMillis: 83, description: { "Adapter": "com.google.ads.mediation.admob.AdMobAdapter", "Latency": 83, "Ad Source Name": "Reservation campaign", "Ad Source ID": "7068401028668408324", "Ad Source Instance Name": "\[DevRel\] \[DO NOT EDIT\] Native Ads Campaign", "Ad Source Instance ID": "3518433842871043", "Credentials": { "pubid": "ca-app-pub-3940256099942544/2247696110/cak=no_cache&cadc=c3&caqid=_-SvZfiWDr-FmsMPtMWtgAM", "campaign_id": "12584073087" }, "Ad Error": { "Code": 0, "Message": "Internal error.", "Domain": "com.google.android.gms.ads", "Cause": "null" } }, adUnitMapping: {pubid: ca-app-pub-3940256099942544/2247696110/cak=no_cache&cadc=c3&caqid=\_-SvZfiWDr-FmsMPtMWtgAM, campaign_id: 12584073087}, adError: AdError(code: 0, domain: com.google.android.gms.ads, message: Internal error.), adSourceName: Reservation campaign, adSourceId: 7068401028668408324, adSourceInstanceName: \[DevRel\] \[DO NOT EDIT\] Native Ads Campaign, adSourceInstanceId: 3518433842871043)\], loadedAdapterResponseInfo: null), responseExtras: {mediation_group_name: Campaign}) 

Minimal Code to Reproduce

Native Controller:

import 'package:get/get.dart'; import 'package:google_mobile_ads/google_mobile_ads.dart'; class NativeAdController extends GetxController{   NativeAd? ad;   final adLoaded = false.obs; } 

Ad Helper:

import 'dart:developer'; import 'package:flutter/foundation.dart'; import 'package:google_mobile_ads/google_mobile_ads.dart'; import '../controllers/controller_native_ads.dart'; class AdHelper{   static Future<void> initAds() async {     await MobileAds.instance.initialize();   }   void loadInterstitialAd({required VoidCallback onComplete}) {     InterstitialAd.load(       adUnitId: 'ca-app-pub-3940256099942544/1033173712',       request: const AdRequest(),       adLoadCallback: InterstitialAdLoadCallback(         // Called when an ad is successfully received.         onAdLoaded: (ad) {           ad.fullScreenContentCallback = FullScreenContentCallback(             onAdDismissedFullScreenContent: (ad) {               onComplete();             },             onAdFailedToShowFullScreenContent: (ad, error) {               log(error.toString());             },             onAdShowedFullScreenContent: (ad) {               log("Full Screen");             },           );           log('This is the $ad loaded.');         },         // Called when an ad request failed.         onAdFailedToLoad: (LoadAdError error) {           log('InterstitialAd failed to load: $error');         },       ),     );   }   static NativeAd loadNativeAd({required NativeAdController nativeAdController}) {     return NativeAd(       adUnitId: 'ca-app-pub-3940256099942544/2247696110',       listener: NativeAdListener(         onAdLoaded: (ad) {           log('$NativeAd loaded.');           nativeAdController.adLoaded.value = true;         },         onAdFailedToLoad: (ad, error) {           log('$NativeAd failed to load: $error');           ad.dispose();         },       ),       request: const AdRequest(),       // Styling       nativeTemplateStyle: NativeTemplateStyle(         templateType: TemplateType.small,       ),     )..load();   } } 

Test Screen:

import 'package:flutter/material.dart'; import '../controllers/controller_native_ads.dart'; class TestScreen extends StatelessWidget{   TestScreen({super.key});   final adController = Get.put(NativeAdController());   @override   Widget build(BuildContext context) {     adController.ad = AdHelper.loadNativeAd(nativeAdController: adController);     return Scaffold(       bottomNavigationBar: adController.ad != null && adController.adLoaded.isTrue           ? SafeArea(               child: SizedBox(                 height: 80,                 child: AdWidget(ad: adController.ad!),               ),             )           : null,     );   } } 

I am using test id provided by official google docs flutter-quick-start

Can anyone explain me why this error occurs?

I have successfully uploaded the video to my channel with YouTube API and used this video as an ad asset.

but,I hope to upload video materials to Ad Storage Channel

I tried to specify the ChannelID when uploading the video, but it did not work It uploads the video to my Youtube channel

enter image description here

Is there any way to upload the video to this channel?