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Imagine you've got two separate forms. In the first form you've collected some data, for example the name of your respondent. Now you want to use that name from the first form in the second form, so your respondent doesn't have to enter this again.
First make sure you have created both forms, so you know the URL of your second form that you want to redirect to.
Form 1 - Send data with a redirect URL
In the first form (that already contains the name question), we have to make sure the data is sent to the second form. To do so, we enable the redirect at the end of the form and insert the URL of the second form to redirect to.
Now we're going to extend that URL with a querystring to pass the desired data to. You can determine the name of the parameter yourself. In this case we will use
firstname as parameter name. Now we attach the answer of the name question to it, by typing the
@ sign and select the right question (more information on piping logic over here).
Form 2 - Receive data with a hidden field block
Now over to the second form. Over there we need to receive the data that is sent by the first form through the querystring. To do so, we add a hidden field block to the second form and set that up to read the querystring. And in this case we want to read the value of a certain parameter inside the querystring, so we enable the feature
Parameter at the left and then enter the name of our parameter, in this case
Now the hidden field block will be filled automatically at the moment the form is opened. In our case that moment is when the first form redirects to the second form, including the querystring.
Connect responses to each other
The responses of your two forms remain separated from each other. But you can do a little trick to be able to manually connect two responses of the same person from different forms. That uses the same concept as above, but with a different parameter.
Each form entry gets a unique identification number when it's saved. In the first form you can use that
Identification number as piping value in the redirect URL. That sends the unique identification number of the response of that first form to the second form.
By saving that identification number in a hidden field in the entry of the second form, you have saved a reference to the corresponding entry of the first form.
In the CSV exports you make of both forms, you can now connect the two separate entries to each other, as the identification number of the first form is also saved to the entry of the second form.