Can you bulk swap the next order date with Bold Subscriptions?
Bold Subscriptions does not offer a feature to bulk change all customers' next order dates at once. The best workaround is to enable customers to change their own next order date from the customer portal in Bold Subscriptions under Settings Customer portal.
For more details, please check out our help article here - https://support.boldcommerce.com/hc/en-us/articles/360055620132-Subscription-Management-Customer-Perspective#change-upcoming-order-date.