I'd like to be able to send an email to the nth person (or every n people) that submit a specific webform. I've tried utilizing rules for this, but I can't seem to expose webform submission data to rules (using submission id). Any thoughts on how this could work through rules? Any suggestions for alternatives?

  • if you are able to code it by your self, i could give you an algorithm Oct 30, 2015 at 14:55
  • I'm not very great with hooks but I can give it a shot. I'd figure I would just take the modulus of the submission ID, like: if(sid%n = 0)...Not sure if that is the best way to solve this or not.
    – ADE
    Oct 30, 2015 at 16:07

3 Answers 3


Have you tried using Webform Rules ?

This should expose webform results to rules, then create a new rule with conditions "if submission ID is 100, 200 etc" then... action: Send email.

You would either need a way to find the nth of 100, or depending on how many submissions you are expecting, just check against a comma separated list, eg "100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200" etc

  • I do have webform rules enabled, but I cannot seem to find anything allowing me to access the submission ID. The rule is set up to fire after a webform has been submitted, but any sort of condition I put in doesn't allow for the submission ID to be accessed.
    – ADE
    Oct 30, 2015 at 15:23
  • Sometimes to use the results of a field when using entities, you have to first use a condition "Entity has field" and then select the field you want to use. There may be something similar with Webform Rules?
    – Collins
    Oct 30, 2015 at 15:30
  • Unfortunately, I wasn't able to get any of the tokens to show up even after adding a field via "Entity has field". I'm able to do data comparison on the data of the submission (through the [data] token), but I'm unable to access any of the specific options of [data] (like [data:sid]).
    – ADE
    Oct 30, 2015 at 15:57

in hook_webform_submission() there is a variable $submission. So all you need to do is to implement this hook in your custom module and check for $submission->sid accordingly to your wisches.

If condition matches: drupal_mail()


Use rules to add +1 to an integer field on a solitary node when a web form is submitted. Have another rule that fires when a webform is submitted and that integer field is equal to 100.

Use that rule to send an email and reset the integer to 0.

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