After uploading a local product inventory feed and setting a feed schedule, you should request inventory verification.

• enable Local Inventory Ads program
• upload locations in Business Profile
• create a Local Inventory Ads campaign
• request inventory verification

The correct answer is: request inventory verification

Explanation: Submitting local product data necessitates a crucial next step: initiating inventory verification checks via the Google Merchant Center. This is vital because Google needs to ensure the consistency between the data provided and the actual in-store inventory. This verification aids shoppers in determining product availability. If discrepancies arise between the local product feed and the in-store data, the verification process faces delays. Only with a successful match can you fully launch Local Inventory Ads.

Read more here: https://support.google.com/merchants/answer/7022488