Hello Jimoh,
Thank you for writing to us. With regards to your concern, you need to link your Analytics and Google Ads accounts, and turn on auto-tagging. If you use the same login for both your Google Analytics account and your AdWords account, they are already linked. Otherwise, you'll need to manually link them according to these directions and import Analytics goals and transactions by following this guide. Let us know if you need any additional information.
Regards,
Nikisha Patel, Google Ads API Team