Thanks Matthias, Currently, I have gone ahead with a database trigger on installation table. It records tokens of deleted installations in a separate table. I periodically query this table from my application and update the data as required. Thanks, Vivek From: aerogear-dev-bounces(a)lists.jboss.org [mailto:aerogear-dev-bounces@lists.jboss.org] On Behalf Of Matthias Wessendorf Sent: Tuesday, January 06, 2015 1:11 PM To: AeroGear Developer Mailing List Subject: Re: [aerogear-dev] UPS : How to get notified when an installation is deleted/updated Hi Vivek, sorry for the late reply, but all of us went on a longer break :-) On Fri, Dec 26, 2014 at 7:00 AM, Vivek Pandey <vivek.pandey(a)pinelabs.com&gt; wrote: Hello UPS team, Hope you had a wonderful Christmas!! I am using UPS 1.0.2 (on postgres/wildfly 8.1) and wanted to understand the best strategy to sync deletions of installation in UPS to my own db. My current implementation stores the push token in my own db and registers them to UPS periodically. However, currently I do not have any strategy to sync deletions to my own db. Does UPS publish deletion events? Nope, we don't have that Or there is any bulk query mechanism to fetch a paginated list of active installations? yes, that's the request we submit behind the installations details page: https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/jaxrs... Thanks, Vivek _____ This message may contain privileged and confidential information and is solely for the use of intended recipient. The views expressed in this email are those of the sender and not of Pine Labs. The recipient should check this email and attachments for the presence of viruses / malwares etc. Pine Labs accepts no liability for any damage caused by any virus transmitted by this email. Pine Labs may monitor and record all emails. _____ _______________________________________________ aerogear-dev mailing list aerogear-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/aerogear-dev -- Matthias Wessendorf blog: http://matthiaswessendorf.wordpress.com/ sessions: http://www.slideshare.net/mwessendorf twitter: http://twitter.com/mwessendorf This message may contain privileged and confidential information and is solely for the use of intended recipient. The views expressed in this email are those of the sender and not of Pine Labs. The recipient should check this email and attachments for the presence of viruses / malwares etc. Pine Labs accepts no liability for any damage caused by any virus transmitted by this email. Pine Labs may monitor and record all emails.