Kernrechtsfrage
Whether the cantonal social insurance court had jurisdiction over the asserted claim under Art. 73 BVG.
Extrahierter Entscheid
The court could only be competent if the claim was a BVG contribution claim; a loan claim would fall outside Art. 73 BVG.
Extrahierte Begründung
Art. 73 BVG covers disputes directly linked to occupational pension relations, especially contribution claims. A loan relationship is pension-external and therefore not subject to that jurisdiction.