To edit an infotype using the Enhance Infotypes transaction (PM01), proceed as follows:

1. Start transaction PM01, Enhance Infotype, by entering the transaction code.
2. Enter the name of the interface format. Choose Create.

This accesses the Create Infotype screen:

3. In the Infotype no. field, enter the four-digit number of the infotype you want to create.

When you specify the infotype number, please remember to enter any leading zeros.

4. In the Subobjects group, flag the subobject that you want to edit.
5. Choose Edit.

Result: The system starts the ABAP Editor, Screen Painter, or Menu Painter, depending on which subobject was selected.