By SteadyState Commerce. Published 2026-08-18.
Amazon quietly retired the old Seller Central invite process on August 10, 2026. If you use a 3PL, a prep center, a repricer, or any third-party tool that touches your Seller Central account, this is worth ten minutes of your time this week, not next month.
For years, granting a service provider access to your account meant the old multi-step invite flow: you'd send an invite, the provider would accept, and access rarely got revisited after that. Amazon has replaced it with two newer paths run through the Solution Provider Portal (SPP). Sellers can now hit "Authorise Now" directly on a provider's SPN listing, or a provider can send you a unique authorization link generated from their SPP account. Either way, access now maps to specific roles that a provider has to have pre-approved on their SPP profile (Source: ecomranker.com, https://ecomranker.com/amazon-seller-central-authorisation-process-2026/).
Here's the part that matters operationally: providers have until September 3, 2026 to verify and update their approved role set on SPP. If a role your provider currently uses isn't part of what they've had approved, it doesn't automatically carry over into the new system. We've seen this pattern before with Amazon migrations, old permissions don't survive a platform change just because they worked yesterday.
A lot of sellers will read "Solution Provider Portal" and assume it's between Amazon and the software vendor, nothing they need to touch. That's the wrong read. If a role lapses on your provider's side, your access through that provider can expire, and depending on which roles are involved, that's inventory management tools, reimbursement and reconciliation services, listing tools, or your prep center's ability to see your shipment data. None of those are things you want to discover are broken during a Q4 ramp.
We work with sellers who run three, four, sometimes five different tools and service providers touching one Seller Central account: a repricer, a reimbursement auditor, an inventory forecasting tool, plus whoever handles prep and inbound. Each one of those relationships now needs to survive this transition independently. One lapsed role doesn't take down the others, but it does mean you're troubleshooting access issues one provider at a time instead of catching it up front.
One more wrinkle worth flagging: Amazon's language says sellers who miss the reauthorization step entirely (once Amazon's September communications go out) risk having all existing access expire, not just the specific roles in question. That's a harder reset than most sellers are expecting from what looks, on the surface, like a backend housekeeping change.
This is a two-week window before a hard cutoff for your providers, and a slightly longer one before it hits your own account directly. Treat it like any other vendor dependency check: confirm each provider touching your Seller Central account has actually verified their SPP role coverage, in writing, before September 3. It costs you a few emails now versus a scramble later when a tool you depend on for inbound or reconciliation suddenly can't see your data. We're already confirming our own SPP coverage for the accounts we manage prep and inbound for, and if you're working with us or anyone else, it's worth asking the same question of every provider on your list this week.