Can I Upgrade/Downgrade my plan? Dalia December 24, 2017 20:31 Updated Follow Yes. You can upgrade/downgrade your plan anytime by going to your Profile Related articles Does Spark Shipping have a "Vendor Portal"? What is your on-boarding process like? SKU Mapping - Bulk Can Spark Shipping update prices in my store? Cancelation Policy Comments 0 comments Please sign in to leave a comment.