How do I change challenge rules without affecting existing traders?

Why this matters:

• Traders bought specific rules; changing them mid-challenge feels like a broken promise.
• Retroactive changes cause disputes and chargebacks.
• Regulators and payment providers look unfavourably on unilateral changes.

A good process:

1. Create the new rule version.
2. Point account types at it for new sales.
3. Announce the change with the date it applies to new purchases.
4. Keep the old version for existing accounts.

PropExecutor does this automatically: editing a rule set creates a new version, and every existing account stays frozen to the version it was created under. The history of versions is kept.

Inventory accounts

If you pre-create accounts, remember that unassigned accounts keep the rule version they were created with. Use them up or archive them when rules change, so new buyers get the new rules.

Keep a dated record of every version on your rules page, so support can show any trader exactly which rules apply to the account they hold.