This post explains how to retrieve the caller form name in an event handler class in Dynamics 365 for Finance and Operations. It addresses the business requirement of adding a query range based on the caller form. The provided X++ code demonstrates how to implement the OnInitialized event handler for a form datasource.
D365: When and how to use mapEntityToDatasource() method
This method, mapEntityToDataSource(), is used in Dynamics 365 for Finance and Operations to initialize datasource fields or create datasource table records while importing data. It checks for existing records and initializes fields based on specific conditions. Understanding data entities and management is essential for utilizing this method effectively.
D365 for Finance and Operations 