To renew your app's iOS Distribution Certificate (P12) file: 

1. Sign in to your Swiftic account.
     
2. Click Dashboard.
    
3. Click the certificate icon. 
   
4. Go to Step 2. 
    
5. Click Download File to download the iOS Distribution .csr file.
   
    
6. Go to https://developer.apple.com/account/ios/certificate/certificateList.action?type=distribution (log in if necessary).
    
7. Click +  to add a new certificate.
   
8. Select App Store and Ad Hoc.
    
9. Click Continue.
   
   
10. Click Continue. 
    
    
11.  Click Choose File and select the file that you downloaded in step 6.
     
12. Click Generate. 
     
13. Click Download and save the .cer file.
     
14. Click Done.
     
15. Return to the Swiftic platform, and click Upload File to upload the .cer file.
     
16. Click Step 4.
     
17. Click the link to your Apple developer account. 
     
18. Click on the relevant app.
     
19. Click Edit.
     
20. Click Generate.
     
21. Click Download to download a new provisioning file. 
     
22. Return to the Swiftic platform, click Upload File and browse to the .mobileprovision file.
     
23. Click Build.
     
24. Once the build has completed, click the download icon to download the new binary file. 
     
25. Re-submit your app's binary file to the Apple App Store, via the Application loader.