As part of my SAP ABAP learning journey, I developed a custom Module Pool application that allows Create, Read, Update, and Delete (CRUD) operations on an Employee Customize table using ...
SAP JCo needs to know the meta data of the function module it mimics. This includes e.g. parameters, typing etc. Hence, JCo by default checks the data dictionary (DDIC) of an SAP NetWeaver ABAP.