Feature request from markoshust, posted on GitHub Sep 10, 2015
The customer id (entity_id) should be included in the customers export for referential checks & database/SQL update capabilities
Comment from piotrekkaminski, posted on GitHub Oct 08, 2015
@asemenenko please review
Comment from piotrekkaminski, posted on GitHub Oct 27, 2015
internal issue: MAGETWO-44685