Amazon Updates Seller Fulfilled Prime Enrollment and Delivery Date Settings for 2025

Amazon has introduced important updates to Seller Fulfilled Prime (SFP) enrollment and delivery date settings, effective November 5, 2025, aimed at giving sellers more control over Prime eligibility and shipping performance.

The update includes:

• size-tier based eligibility tracking

• separate performance metrics by product type

• improved trial structure

• delivery date automation

• expanded on-time delivery protection

This is one of the most significant Prime fulfillment updates for third-party sellers in 2025.

Seller Fulfilled Prime Eligibility Now Evaluated by Size Tier

The biggest change is that Amazon will now evaluate Seller Fulfilled Prime performance separately by product size tier.

Performance metrics are now tracked independently for:

• standard size

• oversize

• extra-large

This means poor performance in one size category will no longer affect eligibility in other size tiers.

For example: If your extra-large products have slower delivery performance, your standard-size Prime eligibility can still remain intact.

This gives sellers much better operational flexibility.

Better Prime Enrollment Flexibility for Sellers

Amazon now allows sellers to enroll in multiple size tiers based on fulfillment capabilities.

This is especially valuable for sellers with mixed catalogs, such as:

• standard-size electronics

• oversized home goods

• extra-large furniture

• fitness equipment

Instead of a one-size-fits-all account-level evaluation, Prime eligibility now reflects actual logistics capabilities.

Existing Prime Sellers Automatically Enrolled Across All Size Tiers

If you are already enrolled in Seller Fulfilled Prime, Amazon has automatically enrolled your account across:

• standard size

• oversize

• extra-large

  
  

This removes the need for manual re-enrollment.

For sellers currently in the trial phase, evaluation will continue at the account level until the trial is successfully completed.

After passing, sellers will automatically be enrolled in all size tiers.

Prime Trial Period Updated to Four Full Weeks

Amazon has also changed the Seller Fulfilled Prime trial period.

The new trial now aligns with weekly performance tracking and lasts:

four full weeks (Sunday through Saturday)

This change creates better consistency between trial performance and long-term eligibility monitoring.

Shipping Settings Automation Now Shows Exact Delivery Dates

Another major update is the enhancement to Shipping Settings Automation inside Prime shipping templates.

When enabled, customers will now see:

specific delivery dates

instead of general delivery windows or date ranges.

For example, instead of:

“Arrives in 2–4 days”

customers may now see:

“Arrives Thursday, Nov 8”

This improves buyer confidence and conversion rates.

Expanded OTDR Protection for Standard Shipping Orders

Amazon has expanded On-Time Delivery Rate (OTDR) protection.

Previously, protection mainly applied to 1-day and 2-day delivery.

Now, it also includes:

standard shipping items

This is a significant benefit for Seller Fulfilled Prime sellers.

How to Qualify for OTDR Protection

To receive OTDR protection, sellers must meet all three conditions:

1. Enable Shipping Settings Automation

Must be turned on inside Prime shipping templates

2. Use Protected Labels

Labels must be purchased through:

• Amazon Buy Shipping

• Veeqo

• marked as OTDR Protected

3. Ship On Time

Orders must be shipped on or before the expected ship date

This helps protect account metrics from carrier-related delivery issues.

Current Seller Fulfilled Prime Performance Requirements

Amazon continues to review performance weekly.

Minimum Requirements

• 100+ Prime packages per month

• 93.5% on-time delivery

• 99% valid tracking rate

• 0.5% or lower cancellation rate

These thresholds remain unchanged.

Delivery Speed Requirements by Size Tier

Amazon has also published updated speed requirements.

Standard Size

• ≥ 30% within 1 day

• ≥ 70% within 2 days

Oversize

• ≥ 10% within 1 day

• ≥ 45% within 2 days

Extra Large

• N/A for 1 day

• ≥ 15% within 2 days

This new size-tier logic works alongside the eligibility changes.

Why This Update Matters for Sellers

This update is a major operational improvement.

Previously, a few poor-performing oversized SKUs could negatively affect an entire Prime account.

Now, sellers can optimize and scale by category.

This especially benefits:

• multi-category brands

• furniture sellers

• appliance sellers

• large catalog businesses

• hybrid logistics operations

Higher Conversion Potential With Exact Delivery Dates

Showing exact delivery dates often improves:

• click-through rate

• conversion rate

• buyer trust

• checkout completion

  
  

Prime shoppers respond strongly to precise delivery promises.

This update may help increase sales velocity.

Final Thoughts

Amazon’s latest Seller Fulfilled Prime updates make the program more flexible, scalable, and seller-friendly.

By separating performance by size tier and improving delivery date visibility, Amazon is helping sellers better manage Prime eligibility while improving the customer experience.

For serious SFP sellers, enabling Shipping Settings Automation and monitoring tier-specific metrics should now be a top priority.

This is one of the most impactful Prime policy changes heading into 2026.