SAP Message 37621 - Icon & unknown. Icon name not changed

Diagnosis
The system does not contain an icon with the specified name.

System Response
The existing icon name remains unchanged.

Procedure
Change the icon name, or choose one from the list of icons permittedfor the current element. To display the list, choose the "Icon"function in the layout editor, attribute window, or element list.
Note: For a complete list of icons, you can use Transaction ICON.