post https://marketplace.walmartapis.com/v3/shipping/labels
This API generates shipping labels with the shipment info passed. The response to a successful call contains the tracking number with the pdf or image type based on the media type passed in Accept header. For example, 'Accept'='application/json,application/pdf' will result in pdf media type, 'Accept'='application/json,image/png' as image png media type and 'Accept'='application/json' as json response. Refer request sample1 for United-States(US) to United-States(US) shipping. Refer request sample2 for United-States(US) to United-States(US) shipping with addons. Refer request sample3 for China(CN) to United-States(US) shipping. Refer request sample4 for BYOA.