A developer is troubleshooting why a parent-level data extension cannot be accessed by a child business unit.
What should the developer check to validatethe data available can be accessed for child business unit queries?
Certification Aid wants to update Contact data stored in a Data Extension using the REST API. What is required to achieve this? Choose 1.
A developer uses an API to send data to a Marketing Cloud data extension once every fiveminutes using the REST API. They notice data does not always write to the data extension, leading to data loss.
Which three best practices are recommended to avoid this issue? Choose 3 answers
A developer needs to find all subscribers on the Customers data extension who made a purchase in the last 30 days. Purchase data is on the Orders data extension which contains a columncalled 'PurchaseDate'. Contacts are identified in both data extensions by a column called 'ContactKey', and the Orders data extension can contain many instances of the same subscnber.
Which SQL keyword should the developer use to achieve the desired result?