When creating a child table to create information of the lines of the header and joining it to the form, AX does not like the standard relations of outerjoin.
The only way to do it is to Add the data source to the form and link it as delayed. Then in the execute query method, clear dynalinks and add the link again as mentioned here.
The only way to do it is to Add the data source to the form and link it as delayed. Then in the execute query method, clear dynalinks and add the link again as mentioned here.
