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SoundSyncAudio software platform

Guide

Subscription Bundle Troubleshooting

Troubleshooting rules for fixed subscription bundle checkout, plan changes, proration, scheduled downgrades, payment recovery, and customer library states.

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Live Moonwave FX products workspace showing the SoundSync product management surface for audio software releases.
Live Moonwave FX analytics workspace showing revenue, product, customer, activation, and download reporting.
Live Moonwave FX customers workspace showing customer management and activity for the developer account.

SoundSync

Troubleshooting matrix

Keep support answers aligned with platform behavior.

SymptomCurrent causeSafe answer
Product checkout rejects a subscription cartUse the wrong endpointUse POST /api/subscriptions/bundles/checkout for fixed bundles.
Monthly and annual products in one bundleMixed intervals are outside fixed bundle scopeCreate separate monthly and yearly bundle versions.
Already subscribed customer wants bundle priceCustomer already has active accessUse change-preview and change-confirm instead of duplicate checkout.
Upgrade requestedHigher bundle selected in change-plan flowShow proration preview and confirm the immediate upgrade.
Downgrade requestedLower bundle selectedSchedule the change for next renewal and keep current products until then.
Customer library shows conflicting statesRendering bugRender exactly one state: active, scheduled change, upgrade preview, payment recovery, cancellation, or processing.