curl --request POST \
  --url https://{operatorDomain}/v1/admin/distribution/product-mappings \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "channelId": "<string>",
  "productId": "<string>",
  "externalProductId": "<string>",
  "externalRateId": "<string>",
  "externalCategoryId": "<string>",
  "active": true
}
'

{
  "data": {}
}