Open your SimiCart dashboard, then select Going Live
In Publish page, you need to fill a unique Identify key for both Android and iOS.
In Android section, there are some required information: Description, Short Description and Service Json (from the previous step).
After providing all required fields, select Submit by Your Google Play developer account and click on Save button at the upper right corner.
Click Get release app to build a new release apk.
After the building process completes, click Download to get your apk.