GoCardless instalment_schedules create_with_dates: 'Invalid document structure' — amount vs total_amount
The docs example was wrong. Use total_amount (not amount) as the top-level key in instalment_schedules.create_with_dates — e.g. total_amount: 10_000 for 100 GBP — and the 'Invalid document structure' error goes away. The maintainer fixed the documentation typo the same day. Source:
Problem outcome: unknown