| DPD | Merchant API key for provider | API_KEY | api_key |
| DPD | Merchant tracking API key for provider | TRACKING_API_KEY | tracking_api_key |
| DPD | BuCode for provider | BU_CODE | bu_code |
| DPD | Customer id for API access | CUSTOMER_ID | customer_id |
| DPD | Address id for API access | ADDRESS_ID | address_id |
| Foxpost | Merchant username for provider | USERNAME | username |
| Foxpost | Merchant password for provider | PASSWORD | password |
| Foxpost | Merchant API key for provider | API_KEY | api_key |
| GLS | Merchant username for provider | USERNAME | username |
| GLS | Merchant password for provider | PASSWORD | password |
| GLS | Merchant client number for provider | CLIENT_NUMBER | client_number |
| MPL | Accounting code for API access | ACCOUNTING_CODE | accounting_code |
| MPL | Client id for API access | CLIENT_ID | client_id |
| MPL | Client secret for API access | CLIENT_SECRET | client_secret |
| MPL | Agreement identifier | AGREEMENT | agreement |
| Packeta | Merchant’s API key for provider | API_KEY | api_key |
| Packeta | Merchant’s API password for provider | PASSWORD | password |
| SameDay | Merchant username for provider | USERNAME | username |
| SameDay | Merchant password for provider | PASSWORD | password |
| TransSped | Merchant username for provider | USERNAME | username |
| TransSped | Merchant password for provider | PASSWORD | password |
| TransSped | Merchant short name or client code for provider | SPEDITOR_NAME | speditor_name |