PayPal付款暂存：能否通过PayPal API实现先收货后确认付款？

Great question! The short answer is yes — PayPal's API absolutely supports this workflow, which aligns perfectly with your requirement of letting User A confirm the goods are correct before releasing payment to User B.

The Core Mechanism: Authorization & Capture #

The key feature here is PayPal's Authorization and Capture flow. Here's how it works in practice for your scenario:

• Step 1: Create an Authorized Order
  Use the Create Order API with the intent parameter set to AUTHORIZE. This tells PayPal to freeze the required funds in User A's account (or linked payment method) instead of immediately deducting them. The request will include details like order amount, item descriptions, and recipient info.
• Step 2: User A Completes Authorization
  User A will go through PayPal's standard checkout flow to confirm the authorization. At this point, no money is sent to User B — it's just held in reserve.
• Step 3: Capture Funds After Confirmation
  Once User A receives and verifies the goods, you (or your system) can call the Capture Order API to trigger the actual transfer of the authorized funds to User B. This step is only initiated after User A gives explicit confirmation.

Important Notes to Keep in Mind #

• Authorization Expiry: Authorized funds are typically held for 30 days. You'll need to capture the amount within this window, or you'll have to initiate a new authorization.
• Partial Capture Support: If needed, you can capture a portion of the authorized amount first (e.g., for partial delivery) and the remaining authorization will be voided afterward.
• Account Eligibility: Most standard PayPal business accounts support this flow by default, but double-check your account settings to ensure the feature is enabled.

This workflow not only meets your requirement but also aligns with PayPal's buyer protection policies, giving both parties added security. If you need help with specific API request examples or edge case handling, feel free to follow up!

内容的提问来源于stack exchange，提问作者Ryukote