ios - In-app purchase entitlement to your app id -

i confused, dont know how can add in-app purchase existing app. when in 'capabilities' choose on in-app purchase show me error add in app purchase entitlement app id. added app id in dev center , in-app purchase in itunesconnect. bundle id sk.freetech.zatracenacestina.intro , in-app purchase set sk.freetech.zatracenacestina.intro.package dont know can fill it?

thank you

you can follow these tutorial 1. http://www.raywenderlich.com/21081/introduction-to-in-app-purchases-in-ios-6-tutorial 2. http://www.tutorialspoint.com/ios/ios_in_app_purchase.htm 3. http://code4app.net/ios/in-app-purchase/4fc85be56803fa4a49000000

create class name iaphelper subclass nsobject

#import <storekit/storekit.h>   uikit_extern nsstring *const iaphelperproductpurchasednotification;  typedef void (^requestproductscompletionhandler)(bool success, nsarray * products); @protocol inapppurchasedelegate <nsobject>  @optional -(void)transactionsucsess:(nsstring *)transactionid; -(void)transactiononrestore:(nsstring *)transactionid; -(void)transactiononfail; @end @interface iaphelper : nsobject  @property(nonatomic,readwrite)id<inapppurchasedelegate> delegate;  - (id)initwithproductidentifiers:(nsset *)productidentifiers; - (void)requestproductswithcompletionhandler:(requestproductscompletionhandler)completionhandler; - (void)buyproduct:(skproduct *)product; - (bool)productpurchased:(nsstring *)productidentifier; - (void)restorecompletedtransactions;    @end 

in iaphelper.m

import "iaphelper.h"

#import <storekit/storekit.h>  nsstring *const iaphelperproductpurchasednotification = @"iaphelperproductpurchasednotification";   @interface iaphelper () <skproductsrequestdelegate, skpaymenttransactionobserver> @end   @implementation iaphelper {     skproductsrequest * _productsrequest;     requestproductscompletionhandler _completionhandler;      nsset * _productidentifiers;     nsmutableset * _purchasedproductidentifiers; }   - (id)initwithproductidentifiers:(nsset *)productidentifiers {      if ((self = [super init])) {          // store product identifiers         _productidentifiers = productidentifiers;          // check purchased products         _purchasedproductidentifiers = [nsmutableset set];         (nsstring * productidentifier in _productidentifiers) {             bool productpurchased = [[nsuserdefaults standarduserdefaults] boolforkey:productidentifier];             if (productpurchased) {                 [_purchasedproductidentifiers addobject:productidentifier];                 nslog(@"previously purchased: %@", productidentifier);             } else {                 nslog(@"not purchased: %@", productidentifier);             }         }          // add self transaction observer         [[skpaymentqueue defaultqueue] addtransactionobserver:self];      }     return self;  }  - (void)requestproductswithcompletionhandler:(requestproductscompletionhandler)completionhandler {      _completionhandler = [completionhandler copy];      _productsrequest = [[skproductsrequest alloc] initwithproductidentifiers:_productidentifiers];     _productsrequest.delegate = self;     [_productsrequest start]; }  - (bool)productpurchased:(nsstring *)productidentifier {     return [_purchasedproductidentifiers containsobject:productidentifier]; }  - (void)buyproduct:(skproduct *)product {      nslog(@"buying %@...", product.productidentifier);      skpayment * payment = [skpayment paymentwithproduct:product];     [[skpaymentqueue defaultqueue] addpayment:payment];  }  #pragma mark - skproductsrequestdelegate  - (void)productsrequest:(skproductsrequest *)request didreceiveresponse:(skproductsresponse *)response {      nslog(@"loaded list of products...");     _productsrequest = nil;      nsarray * skproducts = response.products;     (skproduct * skproduct in skproducts) {         nslog(@"found product: %@ %@ %0.2f",               skproduct.productidentifier,               skproduct.localizedtitle,               skproduct.price.floatvalue);     }      _completionhandler(yes, skproducts);     _completionhandler = nil;  }  - (void)request:(skrequest *)request didfailwitherror:(nserror *)error {      nslog(@"failed load list of products.");     _productsrequest = nil;      _completionhandler(no, nil);     _completionhandler = nil;  }  #pragma mark skpaymenttransactionobserver  - (void)paymentqueue:(skpaymentqueue *)queue updatedtransactions:(nsarray *)transactions {     (skpaymenttransaction * transaction in transactions) {         switch (transaction.transactionstate)         {             case skpaymenttransactionstatepurchased:                 [self completetransaction:transaction];                 break;             case skpaymenttransactionstatefailed:                 [self failedtransaction:transaction];                 break;             case skpaymenttransactionstaterestored:                 [self restoretransaction:transaction];             default:                 break;         }     }; }  - (void)completetransaction:(skpaymenttransaction *)transaction {     nslog(@"completetransaction...");      [self providecontentforproductidentifier:transaction.payment.productidentifier];       [[skpaymentqueue defaultqueue] finishtransaction:transaction];       if(_delegate)       [_delegate  transactionsucsess:transaction.payment.productidentifier]; }  - (void)restoretransaction:(skpaymenttransaction *)transaction {     nslog(@"restoretransaction...");      [self providecontentforproductidentifier:transaction.originaltransaction.payment.productidentifier];       [[skpaymentqueue defaultqueue] finishtransaction:transaction];       if(_delegate)         [_delegate  transactiononrestore:transaction.payment.productidentifier]; }  - (void)failedtransaction:(skpaymenttransaction *)transaction {      nslog(@"failedtransaction...");     if (transaction.error.code != skerrorpaymentcancelled)     {         nslog(@"transaction error: %@", transaction.error.localizeddescription);     }      [[skpaymentqueue defaultqueue] finishtransaction: transaction];      if(_delegate)         [_delegate  transactiononfail]; }  - (void)providecontentforproductidentifier:(nsstring *)productidentifier {      [_purchasedproductidentifiers addobject:productidentifier];     [[nsuserdefaults standarduserdefaults] setbool:yes forkey:productidentifier];     [[nsuserdefaults standarduserdefaults] synchronize];  }  - (void)restorecompletedtransactions {     [[skpaymentqueue defaultqueue] restorecompletedtransactions]; }  @end 

create class rageiaphelper subclass of iaphelper

#import "iaphelper.h"  @interface rageiaphelper : iaphelper  + (rageiaphelper *)sharedinstance;    @end 

in rageiaphelper.m

#import "rageiaphelper.h"  @implementation rageiaphelper  + (rageiaphelper *)sharedinstance {     static dispatch_once_t once;     static rageiaphelper * sharedinstance;     dispatch_once(&once, ^{         nsset * productidentifiers = [nsset setwithobjects:                                       @"your identifier",@"your identifier",                                       nil];         sharedinstance = [[self alloc] initwithproductidentifiers:productidentifiers];      });     return sharedinstance; }     @end   [[rageiaphelper  sharedinstance]  setdelegate:(id)self];  [[rageiaphelper sharedinstance] requestproductswithcompletionhandler:^(bool success, nsarray *products) {       if (success) {         totalproduct_arr =products;         (skproduct *s in totalproduct_arr) {             nslog(@"product identifier %@",[s productidentifier]);             if ([[s productidentifier]isequaltostring:fullversion]) {                 [self.btnfullversion setenabled:yes];             }             else if ([[s productidentifier]isequaltostring:remove_ads]) {                 [self.btnremovead setenabled:yes];             }         }     }     else{         uialertview   *alertfail=[[uialertview  alloc]  initwithtitle:@"product not found" message:@"fails load product.." delegate:nil cancelbuttontitle:@"ok" otherbuttontitles:nil, nil];          [alertfail  show];      } }]; 

and buy product

                     [[rageiaphelper sharedinstance] buyproduct:product];