When editing the shipping address in the admin panel, the additional DHL fields for street name, house number, address addition, parcel locker (packstation) etc. are missing.
The additional fields are added by the following observers of the DHL module:
- Magento 1 module: app/code/community/Dhl/Versenden/Model/Observer::replaceAddressForm
- Magento 2 module (legacy): module-shipping-m2/Observer/ExtendAddressFormObserver::execute
The conditions in the above functions must be met.