[DHL Parcel DE] Documenting Carrier Setup

[MarcoWel]

Sandbox:

Username:                  user-valid
Password:                  SandboxPasswort2023!
DHL API Key:               <API Key from your DHL App>
Customer Number:           33333333330101
Tracking Consumer Key:     <can stay empty for label creation>
Tracking Consumer Secret:  <can stay empty for label creation>

Production:

Username:                  <DHL GKP Username>
Password:                  <DHL GKP Password>
DHL API Key:               <API Key from your DHL App>
Customer Number:           <10-digit EKP customer number> + <4-digit postfix, usually "0101">
Tracking Consumer Key:     <can stay empty for label creation>
Tracking Consumer Secret:  <can stay empty for label creation>

The DHL App needs to be created in the developer portal first. Click on "Get Access" here:
https://developer.dhl.com/api-reference/parcel-de-shipping-post-parcel-germany-v2?language_content_entity=en#get-started-section/

DHL API Documentation with further details for authentication, product codes and label formats can be found here:
https://developer.dhl.com/api-reference/parcel-de-shipping-post-parcel-germany-v2#get-started-section/

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Screenshot of Karrio Sandbox Carrier Settings: