Create a Twitter App
Access the site at https://developer.twitter.com/
Sign in using your credentials (user id and password)
Click on the Apps menu option as in the snapshot below.
Click on the Create an App option.
Fill out the details required in the next screen.
Note down id of the newly created app.
Subscribe to Twitter Ad Campaigns
If you are already a subscriber of the Twitter Ad Campaigns program then ignore the below steps and go directly to #6.
Click on the Twitter Ad Campaigns menu option as shown in the snapshot below.
Click on the Apply For Access button.
Enter all relevant information, including the app id that you got in the prior step.
Click on the Submit button so that your request for enrollment will be submitted for Twitter support team’s review.
You should get a notification mail, about the status of your request, from Twitter to the mail id that you mentioned while submitting the request. If not then drop a note to firstname.lastname@example.org with details and they will get back to you.
Send out a mail to email@example.com mentioning the twitter handle of your ads account and id of the newly created twitter App. So that Twitter will link the latest app to your Ad account.
Share the app details with Shopalyst
Click on the Details button of the App that you created.
Go to the Keys and Tokens tab. You might have to generate some of the values in the below screen when you are accessing this tab for the first time. Please note down and share API Key, API Secret Key, Access Token and Access Token Secret with Shopalyst team. You have to make sure that the Access Level is set as Read and write.