Structure

                 The structure is a list of fields defined under a name, which is used to process data at run-time in SAP ABAP applications.

                Structures are two types one is global structure and another one is local structure. Local structure can be created in ABAP programs and global structure can be created in the data dictionary and can be reusable in different objects.

Create  a Global structure in the data dictionary.

Step 1. Go To Transaction Code SE11 .Select Data Type Radio Button . 
            Enter Structure Name .and Click Create.

Step 2 . In Create Type Screen, Select Structure Radio Button. Press Enter.

Step 3. Fill Data to Respective Column and Save.

Step 4. Now In Menu Bar,Extras → Enhancement Category.

Step 5. Select Can be Enhanced Deep. and Click Copy . Save and Activate .

Structure in Data Dictionary Is Created.