Configure your FedEx account in AtomicSeller: connection details, label settings and default sender.
1. Open the shipping service #
Open Shipping > Shipping services, then double-click the FedEx service you want to configure. Have the account details supplied for your contract ready.

2. Identify the service #
| Field | What to enter |
|---|---|
| SHIPPINGSERVICEKEY | The code identifying this service in AtomicSeller, for example FEDEX_DEMO. Keep an existing service code until its use in your integrations has been checked. |
| MerchantKey | Select the relevant merchant in your account. This list depends on your merchants; Demo names in the illustration are examples. |
| Carrier service full name | A name that helps you recognise the service, for example FedEx Demo. |
3. Enter the account details #
| Field | What to enter |
|---|---|
| Account ID | Your FedEx account number. |
| API key | The API key intended for this account’s connection to AtomicSeller. |
| API secret key | The secret associated with the API key. Its contents are masked in the form. |
4. Choose the label and service settings #
| Field | What to enter |
|---|---|
| Default label format | Select a format compatible with your printer and carrier connection. The displayed choices are listed below. |
| Default service code | Select the service appropriate for your shipments and contract. A service appearing in the list is not necessarily enabled on your account. |
| Default weight | Default weight. Confirm the unit and when your configuration uses this value before entering it. |
| Default deposit delay | Default parcel handover delay. Use the value specified for your workflow; confirm the unit and calculation if needed. |
| Default service | Select this checkbox if the service should be designated as the default in your configuration. |
Label formats #
PDF10x15300DPI identifies a 10 × 15 cm PDF at 300 dpi, intended for dedicated self-adhesive label printers. PDFA4300dpi is the A4 PDF option. Other displayed formats (ZPL and DPL) are intended for compatible professional printing workflows. Confirm the format supported by your carrier connection before changing an existing setting.
Available dropdown choices #
The following labels are reproduced exactly as displayed in the application, including French product names. A blank entry is shown as “(blank)”; its effect depends on the field.
Default label format #
- PDFA4300dpi
- PDF10x15300DPI
- ZPL10x15203dpi
- ZPL10x15300dpi
- ZPL10x10203dpi
- ZPL10x10300dpi
- DPL10x15300dpi
- DPL10x15203dpi
- DPL10x10203dpi
- DPL10x10300dpi
Default service code #
- (blank)
- FedExPriorityOvernight® (PRIORITY_OVERNIGHT)
- FedExStandardOvernight® (STANDARD_OVERNIGHT)
- FedEx2Day® (FEDEX_2_DAY)
- FedEx2Day®A.M. (FEDEX_2_DAY_AM)
- FedExFirstOvernight® (FIRST_OVERNIGHT)
- FedEx1Day®Freight (FEDEX_1_DAY_FREIGHT)
- FedEx2Day®Freight (FEDEX_2_DAY_FREIGHT)
- FedEx3Day®Freight (FEDEX_3_DAY_FREIGHT)
- FedExExpressSaver® (FEDEX_EXPRESS_SAVER)
- FedExGround® (FEDEX_GROUND)
- FedExHomeDelivery® (GROUND_HOME_DELIVERY)
- FedExFirstOvernight®Freight (FEDEX_FIRST_FREIGHT)
- FedExInternationalPriority® (INTERNATIONAL_PRIORITY)
- FedExInternationalFirst® (INTERNATIONAL_FIRST)
- FedExEuropeFirst® (EUROPE_FIRST_INTERNATIONAL_PRIORITY)
- FedExInternationalPriority®Freight (INTERNATIONAL_PRIORITY_FREIGHT)
- FedExInternationalPriorityDirectDistribution® (INTERNATIONAL_PRIORITY_DISTRIBUTION)
- INTERNATIONAL_DISTRIBUTION_FREIGHT (INTERNATIONAL_DISTRIBUTION_FREIGHT)
- INTERNATIONAL_ECONOMY (INTERNATIONAL_ECONOMY)
- INTERNATIONAL_ECONOMY_DISTRIBUTION (INTERNATIONAL_ECONOMY_DISTRIBUTION)
- INTERNATIONAL_ECONOMY_FREIGHT (INTERNATIONAL_ECONOMY_FREIGHT)
- INTERNATIONAL_PRIORITY_EXPRESS (INTERNATIONAL_PRIORITY_EXPRESS)
- FEDEX_INTERNATIONAL_CONNECT_PLUS (FEDEX_INTERNATIONAL_CONNECT_PLUS)
- FEDEX_REGIONAL_ECONOMY (FEDEX_REGIONAL_ECONOMY)
- FEDEX_PRIORITY (FEDEX_PRIORITY)
5. Complete the default sender #
Enter the default sender under Default sender. These details are intended for use when no sender is provided in the order or through the API.
| Field | What to enter |
|---|---|
| Company name | Sender company name. |
| Address 1 | Street number and name. |
| Address 2 / Address 3 | Additional address details, if needed. |
| Default contact phone | Sender contact phone number. |
| Contact person | Sender contact name. |
| Default contact email | Sender contact email address. |
| Zip code / City | Postal code and city. |
| Country / Country ISO code | Country and two-letter code, for example FRANCE and FR. |
6. Save and check the connection #
Use Save to save the settings and Check connection to run the available connection check. If an error appears, review the account credentials and selected service, then contact AtomicSeller support with the exact error message if needed. Do not include passwords or secret keys.
