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Frequently asked questions
Should I think about implementing an API?
What is an API?
What API's should I implement?
Why is my API call not working?
At what frequency can I call the API's?
Can I put multiple shipments in one API call?
What is the shipment limit per API call?
Do PostNL API's validate addresses?
What value should I use for CollectionLocation (or BLS-code)?
My shipment data appears not processed on PostNL end, why?
How do I initiate a new shipping product implementation?
Can I use the same API for different PostNL business units?
Why am I receiving the error message “The user is not authorized for this operation based on the provided...” when submitting a call to any of the webservices?
The product and/or service I wish to implement is not specified on your products page. How do I go about in implementing this product/service?
I have multiple webshops on different platforms. Can I use my existing set of api keys for all my webshops? Or do I need to have separate keys for each of my webshops?
Are there any costs being charged in general for creating shipments I’ve submitted via the PostNL API?
Is the webservice (API) down?
Frequently asked questions
Should I think about implementing an API?
What is an API?
What API's should I implement?
Why is my API call not working?
At what frequency can I call the API's?
Can I put multiple shipments in one API call?
What is the shipment limit per API call?
Do PostNL API's validate addresses?
What value should I use for CollectionLocation (or BLS-code)?
My shipment data appears not processed on PostNL end, why?
How do I initiate a new shipping product implementation?
Can I use the same API for different PostNL business units?
Why am I receiving the error message “The user is not authorized for this operation based on the provided...” when submitting a call to any of the webservices?
The product and/or service I wish to implement is not specified on your products page. How do I go about in implementing this product/service?
I have multiple webshops on different platforms. Can I use my existing set of api keys for all my webshops? Or do I need to have separate keys for each of my webshops?
Are there any costs being charged in general for creating shipments I’ve submitted via the PostNL API?
Is the webservice (API) down?
Is the API down?
The current status (up/down/warning) is displayed on the
Availability webpage
.
