FAQ
Why not the core DHL module?
Section titled “Why not the core DHL module?”The core module of CS-Cart (up to 4.21.2) uses DHL’s legacy XML-PI interface, which DHL Express has deprecated in favour of the MyDHL API (integrators report deprecation for non-enterprise accounts from 3 June 2025). This add-on uses the MyDHL API as a separate carrier; your old methods are not changed.
Is this DHL Parcel Germany (DHL Paket)?
Section titled “Is this DHL Parcel Germany (DHL Paket)?”No. DHL Express is DHL’s international express network (waybills, Express Worldwide, Economy Select). For DHL Paket labels in Germany see our “DHL Parcel Germany Shipping & Labels” add-on.
What do I need from DHL?
Section titled “What do I need from DHL?”A DHL Express customer account and MyDHL API access (requested on developer.dhl.com, no fee for the API). DHL sends test and production credentials.
Are the rates my account rates?
Section titled “Are the rates my account rates?”Yes, DHL’s quote for your account and the parcel. DHL states that quotes are indicative; the invoice follows the parcel actually handed over.
Does it work with CS-Cart and Multi-Vendor?
Section titled “Does it work with CS-Cart and Multi-Vendor?”Yes: CS-Cart (one account or one per storefront) and Multi-Vendor (one marketplace account or one per vendor), 4.17.2 to 4.21.x.
Where are my credentials stored?
Section titled “Where are my credentials stored?”In your database, encrypted with a key derived from your store’s secret. They are never shown again.
Can a label be created twice?
Section titled “Can a label be created twice?”The add-on guards against it: every attempt is recorded before DHL is called, and a lost answer is resolved by searching DHL for the reference instead of sending the request again.
Does it send data to Kavio Labs?
Section titled “Does it send data to Kavio Labs?”No. It talks to DHL only; the license check sends your domain name to the Kavio Labs license server once a day (Kavio Labs downloads).
How do I get support?
Section titled “How do I get support?”Through https://cs-cart.kaviolabs.com.
My license shows “Pending verification”
Section titled “My license shows “Pending verification””This status appears in older add-on versions when you use a CS-Cart Marketplace license number that our license server has not matched with the Marketplace yet. The add-on is fully working in this state: no feature is switched off and you do not need to do anything. Newer versions show it as Active (Marketplace license). We confirm Marketplace numbers on our side; click Check now on the add-on’s License tab (Add-ons → Manage add-ons → the add-on) a little later and it shows Active. If it has not changed after 24 hours, contact support with your Marketplace order number.
Still stuck?
Section titled “Still stuck?”Work through the troubleshooting guide, then contact support with your CS-Cart version, edition, PHP version and the add-on version (1.0.0).