It is common for sellers to find that some products can be included in an FBA shipment while others are blocked. This happens because Amazon evaluates each product individually based on storage type, eligibility, restrictions, and catalog information.
Understanding these differences can help identify why certain products are allowed while others are not.
📦 Different Storage Types Have Different Capacity Limits
Amazon tracks storage capacity separately for:
Sortable
Non-Sortable
Apparel
Oversize
For example:
You may have available Oversize capacity but no remaining Sortable capacity. In this situation, Oversize products can still be shipped while Sortable products are blocked.
⚠️ Product Restrictions May Vary
Not all products have the same eligibility requirements.
Some items may be restricted because of:
Category approval requirements
Brand restrictions
Compliance regulations
Hazmat reviews
Meanwhile, other products in the same shipment may remain fully eligible.
🏷️ Missing Product Information
Amazon requires complete catalog information before accepting inventory.
Products with:
Missing dimensions
Missing package weight
Incomplete attributes
may be blocked, while products with complete information continue through the shipment process.
🚚 Hazardous Materials Classification
Products containing batteries, chemicals, or other regulated materials may require additional review.
During the review process:
Eligible products can be shipped
Pending products may remain blocked
📊 Inventory and Capacity Constraints
Capacity restrictions may affect only certain products.
For example:
A shipment may exceed available Sortable capacity
Apparel capacity may still be available
As a result, some items proceed while others generate errors.
🔍 Catalog and Amazon Validation Checks
Amazon performs validation checks on every ASIN during shipment creation.
If an individual product fails validation because of:
Missing information
Eligibility restrictions
Catalog issues
only that product may be blocked.
💡 What Should You Do?
If some products cannot be shipped:
Review the specific error message.
Check product dimensions and weight.
Verify category eligibility.
Review storage capacity by storage type.
Check for hazmat or compliance restrictions.
The error message typically identifies the affected product and the reason for the restriction.
✅ Summary
Some items can be shipped while others cannot because Amazon evaluates each product separately based on storage capacity, product eligibility, catalog completeness, and compliance requirements. Identifying the specific restriction is the key to resolving shipment issues.