1. Understand your needs: Before negotiating with your Amazon FBA supplier, it's essential to understand your specific needs, such as the product type, quantity, and budget.

2. Research the market: Researching the market can help you understand the pricing and terms of other suppliers and give you leverage in negotiations.

3. Build a relationship: Building a relationship with your supplier can help establish trust and create a more favorable negotiation environment.

4. Be prepared: Come to the negotiation table with a clear plan, including your desired pricing, terms, and conditions, as well as your reasons for asking for them.

5. Focus on value: Instead of just asking for lower prices, focus on getting more value from your supplier, such as better shipping terms or higher quality products.

6. Be flexible: Be open to compromise and creative solutions that benefit both parties, such as bulk ordering or long-term contracts.

7. Communicate clearly: Communicate your needs and expectations clearly and avoid being confrontational or aggressive in your negotiation approach.

8. Review and document agreements: Once you have reached an agreement with your supplier, make sure to review and document the terms and conditions to avoid any misunderstandings or disputes in the future.

By following these tips and strategies, e-commerce businesses can negotiate effectively with their Amazon FBA suppliers and get the best prices, terms, and conditions for their products.