Finding Global Data Types (GDT Finder)

Procedure

When you map fields (simple data types), you need to assign each field to a global data type (GDT) or core data type (CDT). In the case of GDTs, you can use the Global Data Type (GDT) Finder to identify an existing mapping or GDT. Proceed as follows:

Start transaction SIW and navigate to your project in the project tree.
Expand its mapping node and navigate to a field (simple type). Change into edit mode and double-click the name. The system then displays the detail screen and the GDT Finder group box at the bottom.
Select the Existing Mapping tab page of the GDT Finder group box and check if the GDT Finder suggests a data type. This is the case, if the characteristic value has already been mapped to a global data type within another project (enterprise service implementation) of the same local namespace.
If the GDT Finder suggests a global data type, check whether it fits.
- If it fits, double-click it and choose Save. You have now finished mapping this data type. Restart the procedure for the next field.
- If it does not fit or if the GDT Finder does not suggest a global data type, continue as follows:
  
  Select the Local GDT tab page. Check if the GDT Finder suggests a global data type for your local namespace and decide whether it fits.
  - If it fits, double-click the suggested global data type and choose Save. You have now finished mapping this data type. Restart the procedure for the next field.
  - If it does not fit, or if the GDT Finder does not suggest a data type, proceed as follows:
    Note
    
    To map a characteristic value with a global data type, the latter must be part of your local namespace. If the corresponding global data type is not located in your local namespace, you need to copy it from the ES Repository to your local namespace as follows:
    1. Select the Go to ES Rep. pushbutton on the toolbar, enter your username and password and log on to the ES Repository system. You are on the Design Objects tab page. Open the software component folder and the software component version subfolder that contains your local GDT namespace. Go to your namespace and expand its structure. Open the Data Types node.
    2. Open the software component folder (for example, SAPGLOBAL), the relevant software component version subfolder, and the global namespace (for example http://sap.com/xi/SAPGlobal/GDT). Open the Data Types folder. Copy the relevant GDT into your local namespace. Select the Save Original as Reference copy option and choose the Copy pushbutton.

Result

You have selected an appropriate global data type for each field and, if necessary, provided global data types within SIW if the GDT Finder has not suggested any.

More Information

For more information about the mapping, see Completing Signatures (Mapping).