There are multiple strategies for maximizing the efficiency of our API utilization. For example, you have the option to generate Parcels in large quantities, retrieve recently updated Parcels by utilizing the "updated_after" parameter, or leverage webhooks to receive updates directly pushed to your system. To perform bulk announcements efficiently through our API, consider executing them in smaller batches and in parallel. For instance, if you have 100 parcels to announce, you could divide them into 5 batches of 20 calls each and execute these batches simultaneously using our API.

To generate parcels and shipping labels simultaneously through the API, include the 'request_label' field set to 'true' in the request to the Create a parcel endpoint. Further details on this process can be found in our documentation.

When creating parcels via the panel, shipping rules will be applicable if the 'apply_shipping_rules' field is set to true. For accurate application of shipping rules, we recommend using the "Unstamped letter" shipping method when generating your parcels. By doing so, you can bypass the mandatory 'shipping_method' fields, and any configured rules impacting shipping method selection will be correctly applied to your parcels.

For testing purposes, you have the option to utilize the Sendcloud shipping method called "Unstamped letter" when creating your parcels. This enables you to experiment with the API without the concern of incurring charges for the labels generated. However, please be aware that the "Unstamped letter" method cannot be used to test the creation of return labels. If you need to test return shipping labels, you should choose a shipping method that supports cancellation requests from Sendcloud. Ensure you cancel the label before 23:59 on the day it was created. For detailed information on testing labels, refer to our documentation.

Certainly! If you have successfully connected your own carrier contract, you can retrieve both your custom methods and Sendcloud methods by sending a GET request to the Retrieve a list of shipping methods endpoint. It's important to note that your contract pricing will only be retrieved if you have uploaded your own carrier pricing into the system.

Indeed! You can access your own prices within your Sendcloud account.

Yes! You have the capability to do so, and you can find more detailed information on this in our documentation.

Certainly! When the mandatory fields are accurately specified for each product in the shipment, your customs documents will be automatically generated. For more information, please refer to our documentation (international shipping section).