What currency is my CSP invoice billed in if my partner is in a different country?

This depends on the partner's billing setup rather than a fixed Microsoft rule — some CSP partners bill customers in the partner's local currency, while others can accommodate billing in the customer's currency, particularly for larger or international organizations. Currency conversion, if applicable, is typically handled by the partner as part of their invoicing process.

It's worth clarifying currency and any conversion fees directly with a partner before signing up, especially if cross-border billing is a factor for your organization.