Guidelines and resources
Before you start
Integrate Express Checkout
This section includes tips for having the best developer expereince.
Last updated on Sep 27, 2023
When implementing Klarna Payments, make sure to add the library only once. Doing it otherwise might incur undesired side effects.
before importing the library. This way you ensure it will be invoked when the library is loaded.
Only utilize the
has been invoked. This way you avoid it being undefined.
Always invoke the
callback that you receive in the
when using Express Checkout. They look the same, however, they are not.
If you need to render more than one button, you can always invoke
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