  Son Of X-Shooter (SOXS) is a double-armed (UV-VIS, NIR) spectrograph designed
to be mounted at the ESO-NTT in La Silla, now in its Assembly Integration and
Verification (AIV) phase. The instrument is designed following a modular
approach so that each sub-system can be integrated in parallel before their
assembly at system level. INAF-Osservatorio Astronomico di Padova will deliver
the Common Path (CP) sub-system, which represents the backbone of the entire
instrument. In this paper, we describe the foreseen operation for the CP
alignment and we report some results already achieved, showing that we
envisaged the suitable setup and the strategy to meet the opto-mechanical
requirements.
