# Triggering Logic

**URL:** <https://forum.avicennaresearch.com/t/triggering-logic/268>\
**Category:** Support\
**Created:** [February 3, 2021, 9:57am UTC](https://forum.avicennaresearch.com/t/triggering-logic/268 "2021-02-03T09:57:36Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![harrietrosegalvin](https://forum.avicennaresearch.com/letter_avatar_proxy/v4/letter/h/c68b51/32.png) [@harrietrosegalvin](https://forum.avicennaresearch.com/u/harrietrosegalvin)\
**Post date:** [February 3, 2021, 9:57am UTC](https://forum.avicennaresearch.com/t/triggering-logic/268/1 "2021-02-03T09:57:37Z")

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Hi Ethica Team,

Is it possible to trigger the release of a survey, based off time the previous survey was triggered. For example, if Survey X is randomly triggered between 08:00 and 11:00 e.g., 10:44 - can you trigger Survey Y to be released Survey X time + 5 hours e.g., 15:44?

Thanks  
Harriet

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**Author:** ![m.hashemian](https://forum.avicennaresearch.com/letter_avatar_proxy/v4/letter/m/a5b964/32.png) [@m.hashemian](https://forum.avicennaresearch.com/u/m.hashemian)\
**Post date:** [February 3, 2021, 10:50am UTC](https://forum.avicennaresearch.com/t/triggering-logic/268/2 "2021-02-03T10:50:29Z")

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Hey @harrietrosegalvin

Unfortunately not. Of course, you can set the first survey to be prompted say between 8 to 9, and then the second survey to be prompted between 2 pm to 3 pm, and this guarantees the surveys prompt time are minimum of 5 hours apart, but they won’t be exactly 5 hours apart, unless the triggering logic for both surveys specify an exact prompt time (e.g. at 8 am and 1 pm), and not a random time within a range.

Hope it helps,  
Mohammad

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**Author:** ![harrietrosegalvin](https://forum.avicennaresearch.com/letter_avatar_proxy/v4/letter/h/c68b51/32.png) [@harrietrosegalvin](https://forum.avicennaresearch.com/u/harrietrosegalvin)\
**Post date:** [February 3, 2021, 11:00am UTC](https://forum.avicennaresearch.com/t/triggering-logic/268/3 "2021-02-03T11:00:53Z")

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Thank you for your response - what we are trying to achieve is 3 random time points daily - but we feel we need to give our participants more time to respond.

Currently we have three time windows for the surveys to be randomly triggered with a 1 hour expiration for each survey (i.e., 1 hour to respond):  
08:00 - 12:00  
13:00 - 17:00  
18:00 - 23:00

And I right in thinking that if I set the expiration time to 5hrs e.g., allowing 5 hours to respond - that the first trigger with a 5 hours window to respond will block the second one being triggered - if unanswered? Or is it possible to allow the overlap.

Thanks  
Harriet

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**Author:** ![m.hashemian](https://forum.avicennaresearch.com/letter_avatar_proxy/v4/letter/m/a5b964/32.png) [@m.hashemian](https://forum.avicennaresearch.com/u/m.hashemian)\
**Post date:** [February 3, 2021, 11:17am UTC](https://forum.avicennaresearch.com/t/triggering-logic/268/4 "2021-02-03T11:17:27Z")

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You are right, with the schedule above, you cannot set the expiry time to 5 hours. Otherwise many of your survey sessions will be `Blocked`. And it would not make sense either.

Maybe you can reduce the time window in which the survey is supposed to be prompted from 4 hours to 2 hours, then increase the expiry time by 1 or 2 hours. This will make enough gap between the three sessions each day.