The reason I ask is because the allocations page states the "delivered" is half what the "published" limit is, which doesn't make sense as we can publish more messages than even a single subscriber can consume.
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- This question was asked almost 3 years ago but it still makes no sense to me. As @Deployment Failure asked, Salesforce states that in performance editions you can publish 250 000 events by hour but you can only deliver 50 000 events by day. So you can publish hundreds of thousands of events by days that are not delivered. Very useful !Martin Lezer– Martin Lezer2022-08-31 06:58:01 +00:00Commented Aug 31, 2022 at 6:58
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The Event Bus allows for multiple subscribers to an event, such as:
Publisher 1 Publisher 2 | (publishes) | Event 1 Event 2 / | \ / | \ | | | (delivered) | | | Client | Client Client | Client 1 Client 3 4 Client 6 2 5 In this example, if Publisher 1 "publishes" an event, Clients 1-3 will each get a "delivery," while if Publisher 2 "publishes" a different event, Clients 4-6 will each get a "delivery."
The limits, therefore, allow for an average of 2 clients per event published.
- Thanks for the vizulisation, I got my wording wrong in the question. The allocations page states the published number is double what the delivered count is, so even with ONE consumer the total number events cant be subscribed to.Deployment Failure– Deployment Failure2019-11-25 16:39:57 +00:00Commented Nov 25, 2019 at 16:39
- hello, sorry @sfdcfox to come back on the explanation but I still do not understand why the limits say : you can publish 250 000 events per hour, but can only deliver 50 000 per DAY ? If I take a simple example of 1 publisher, and 1 subscriber via cometD, does this really mean that if I publish 100 000 events in one hour, then the subscriber will only receive 50 000 events, and then no further event will be received by the subscriber for the next 23 hours ?Chris– Chris2025-07-31 08:01:07 +00:00Commented Jul 31 at 8:01