The point about documentation is spot on, but there's another technical hurdle often overlooked: payment infrastructure. In Japan, B2B is still heavily dominated by bank transfers (Furikomi). If your SaaS billing stack only supports credit cards, you'll hit a wall with larger enterprise clients who expect to pay via monthly bank invoices. Localizing the billing logic is almost as important as localizing the UI.
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The point about documentation is spot on, but there's another technical hurdle often overlooked: payment infrastructure. In Japan, B2B is still heavily dominated by bank transfers (Furikomi). If your SaaS billing stack only supports credit cards, you'll hit a wall with larger enterprise clients who expect to pay via monthly bank invoices. Localizing the billing logic is almost as important as localizing the UI.