Diagnosis
An error occurred while the RFC connection was being established. Anattempt was made to call the function module &V3& on the system&V4&.
The error message reads: &V2&

System Response
The system terminates the BOM explosion.

Procedure
Notify your system administrator.

Procedure for System Administration
Check the entries in the RFC maintenance transaction.
Check the REA Customizing settings for theBOM Explosion User Exit.