Questão jurídica principal
Whether the second CHF 50,000 payment under the cooperation agreement was independently due.
Decisão extraída
The payment was an advance on future turnover-based remuneration, not an autonomous debt claim; after termination, it had to be settled under the final account clause.
Fundamentação extraída
The wording of Art. 3.2 and Art. 6.4, read in good faith, showed that the second payment was payable in advance but counted toward the final remuneration and could be offset against the eventual balance.