@Anuhya-Y  Is it correct?In my sandbox, all the data ingested via source connectors or the WebSDK has not been deleted for more than 7 days.

What is the maximum capacity of the asset repository and the maximum size of a picture? and is it feasible if two million people can click to open the image at the same time?

Duration of keeping files on storage after data ingestion | AEP | Adobe Experience CloudFrom a Data Lake perspective, customers may access Customer Data in the Data Lake for up to 7 days. Is it the same for the system datasets?

https://experienceleague.adobe.com/docs/journey-optimizer/using/configuration/frequency-rules.htmlThe Frequency Rules currently only allow the use of either Email or Push notification channels. Will they include SMS in the future, or are there any current alternatives?    

Based on the information provided, I still couldn't find any relevant data.If there are three entries in the jounery and two of them have the same email address, how many times will the jounery send emails? Three times or two times? Will someone receive two identical emails?"

Is it possible to send messages to the same email address or phone number multiple times within the same journey? Does Adobe Journey Optimizer filter out these duplicates?"

  https://experienceleague.adobe.com/docs/journey-optimizer/using/data-management/datasets/datasets-query-examples.html?lang=en   How could I export these email tracking data automatically at weekly or monthly?   https://experienceleague.adobe.com/docs/experience-platform/destinations/ui/activate/ex...