GET
/selling-channels
curl \
--request GET 'api.services.omnicado.com/api/v2/selling-channels' \
--header "X-OMNICADO-TOKEN: $API_KEY"
curl \
--request GET 'api.services.omnicado.com/api/v2/selling-channels' \
--header "X-OMNICADO-TOKEN: $API_KEY"