Click on the email and in the properties select the eye icon to show the email parameter override section.  

@Michael_Soprano You can follow this tutorial link to create a price drop business event in AJO.

@swastika_lal1 When you import the audience using custom audience upload it will get mapped to identityMap.email.0.id. If you want to use this field for targeting you should first enable it on the experience platform section under data sources. Once the field is enabled on the experience platform fi...

@aaanuk2016 For the given use case, I would suggest going with one journey with multiple touchpoints with wait times to communicate about the Welcome email, account setup guide, document submission reminders, and first transaction encouragement. I believe at least you would for a day between each to...

@Michael_Soprano You can try along these lines, substr(toString(now()),11,15)=="06:30"

@Juan_SebastianQu I would suggest consider creating a query to retrieve emails from a dataset excluding domains such as "gmail.com" and "yahoo.com". The criteria should focus on identifying fewer valid domains in comparison to the N number of invalid domains.

@TapasMahalik If the list contains the primary identity (ex. email address) and other attributes for personalization then you can use the Import audience CSV option. https://experienceleague.adobe.com/en/docs/experience-platform/segmentation/ui/audience-portal?lang=en#import-audience

@Christian_AdalidFo Which destination you're connecting and what kind of mapping you're enabling with the destination? 

@Ajo_WisdomChase Take a look at the dynamic content functionality in AJO to achieve the same in AJO. https://experienceleague.adobe.com/en/docs/journey-optimizer/using/content-management/dynamic/dynamic-content

@Michael_Soprano As of today you will have to use condition activity to check each time either using audience or expressions. I believe global exit criteria feature is coming soon to handle such a scenario.