Kna1-kunn2 Invalid Value -foreign Key Check Failed- Jun 2026

Several factors can contribute to this error. Here are some common causes:

In transaction SE16 , if you double-click on a KUNN2 value that has a foreign key, SAP automatically opens the check table. Train users to never manually bypass this warning. kna1-kunn2 invalid value -foreign key check failed-

is the "Master" table. it holds the unique identity of every customer (KUNNR). Several factors can contribute to this error