SAP Search helps - F4 selection entry helps available on input fields
Search helps provide field entry help for the user executing an ABAP report or SAP program. They are accessed via the small button available on each individual field or by pressing the f4 key while editing the specific field. Once the search help button has been pressed the user is presented with a popup dialog box containing the search fields available for that particular SAP search help. Any data known can be entered into these search fields to help find the field entry value the user is looking for.