SAP R/3 uses matchcodes so you don't have to remember all the codes used for different items in your organization. You can have SAP R/3 look up items such as product numbers or purchasing groups:
Matchcode A tool you can use to have SAP R/3 locate the field values corresponding to selected items. A good understanding of matchcodes can give you a real boost in getting the most out of SAP R/3.
Any field that displays a small triangle in the top-right corner has a matchcode (see Figure 8.1).
When you move your cursor to one of these fields, the down-arrow appears beside it.
Are There Matchcodes? No triangle doesn't necessarily mean that there are no matchcodes. ...