javascript - Paypal Express checkout button is not working after switch to product mode

Question

I'm using Paypal Express checkout button on my website.

It works well on sandbox mode. But after switch to production mode with production key, it doesn't work.

Always returns invalid_client errors.

{"error":"invalid_client","error_description":"Client Authentication failed"}

I tried to change Paypal App key several times, but always failed.

标签： javascriptreactjspaypal