Invoices and LOA are two important documents in Amazon wholesale.
Amazon uses these documents to confirm that products come from real sources.
What Is an Invoice?
An invoice is a document that shows:
- Supplier name and address
- Product details
- Purchase date and quantity
Amazon reviews invoices during account checks and approvals.
What Is an LOA?
LOA stands for Letter of Authorization.
It shows that a brand allows a seller to sell its products.
Not every brand needs an LOA, but some do.
Why These Documents Are Important
Without proper documents:
- Amazon may block listings
- Sellers may face account reviews
- Selling can stop suddenly
Clear documents help sellers stay organized and confident.
Documents in 2026
Amazon’s document checks are stricter in 2026.
Sellers who keep records clear and updated face fewer issues.
🔹 Blog FAQ
Q: How long should invoices be kept?
Sellers should keep invoices for several months, as Amazon may ask for them later.
