Apply to Each showing 2 items but only sending one email

[Doddy83]

Hello,

Little help needed please!

I've created a flow that checks a SharePoint list for review dates. I'm just testing it with 2 entries with todays date. The flow runs and under the initial 'Apply to Each' it does seem to pickup both from the list, but I'm only receiving an email for the first entry, not the second.

When I check the Outputs using the 'Click to Download' link, I do see both entry's in there, although they don't appear to be split at that point, just one straight after the other? Any idea what's up here and why its not processing both at the same time?

[tom_riha · Accepted solution]

Hello @Doddy83 ,

the 'Apply to each' action runs in serial by default. It takes the 1st item and does the actions, then it takes the 2nd item and does all the actions,... In your flow the action 'Send email with options' is waiting for the response = the 'Apply to each' will wait until the response for the 1st item is received and only then it'll send the email for the 2nd item (and then wait for response).

To send all email at once you must switch in the 'Apply to each' settings 'Concurrency Control' to 'On'. That will switch the action into parallel mode and it'll process the items in parallel. There's a limitation though that allows you to run maximum 50 actions in parallel = max. 50 emails waiting for a response at a time.

[Doddy83]

Thank you very much @tom_riha, that's sorted that issue