Failed to auto-attach a custom susbcription added in activation key that only have a custom product (ie. Centos, etc)

Issue

• Failed to auto-attach a custom susbcription added in activation key that only have a custom product (ie. Centos, etc)

2015-11-19 23:39:33,883 [req=9a7dda77-12ae-4d74-92d2-bd4244c60041, org=] INFO  org.candlepin.common.filter.LoggingFilter - Request: verb=POST, uri=/candlepin/environments/1-8/consumers/?activa                                  tion_keys=7fd0fb09-5f82-4f64-97fe-abc1234567
2015-11-19 23:39:34,979 [req=9a7dda77-12ae-4d74-92d2-bd4244c60041, org=] WARN  org.candlepin.resource.util.ConsumerBindUtil - Unable to attach a subscription for a product that has no pool: null  
2015-11-19 23:39:34,998 [req=9a7dda77-12ae-4d74-92d2-bd4244c60041, org=] INFO  org.candlepin.resource.ConsumerResource - Consumer ffab9d59-0f43-4391-b6dd-xyz1234567 created in org ExampleOrg