- create A OneSignal Account if you do not already have one
- Your OneSignal App ID, available in Keys & IDs
- Config - APP_IDin- rn_lekima/src/config/onesignal.js
- Generate Credentials 
ANDROID - Generate a Google Server API Key
- Update Wordpress Config File
Open file wp-config.php and add this config, don't forget change xxxxxxxxxxx with your config. This file is located in the root of your WordPress file directory and contains your website’s base configuration details, such as database connection information.
define( 'MOBILE_BUILDER_ONESIGNAL_APP_ID', 'xxxxxxxxxxx' ); define( 'MOBILE_BUILDER_ONESIGNAL_API_KEY', 'xxxxxxxxxxx' );
