Understanding the Issue

The problem lies in the way Smart Capture forms handle redirects and how the subscriberkey is generated and passed. When using a hidden field in Smart Capture with %%=GUID()=%% to generate a unique subscriberkey, this value is not automatically passed to the next page in a redirect.

Root Cause

The root cause of this issue is that the subscriberkey is not being stored in a way that can be accessed by the next page in the redirect. This is because the subscriberkey is generated on the client-side using JavaScript and is not stored in a server-side session or cookie.

Step-by-Step Solution

To fix this issue, you can use a CloudPage with an auto-generated GUID and then pass that GUID as a parameter in the redirect URL. Here is an example of how you can do this using AMPscript:

CloudPage.html

%%[ var guid = GUID() ]%%
Next Page

Alternatively, you can use SSJS to generate a GUID and store it in a server-side session or cookie, and then pass that value as a parameter in the redirect URL.

Best Practices

To avoid this issue in the future, it is recommended to use a custom web form instead of Smart Capture, as it provides more flexibility and control over the form data and redirect process.

Heads up: Make sure to test your CloudPage and redirect URL to ensure that the subscriberkey is being passed correctly.

Checklist

Fixing Subscriberkey Passing Issue

• Use a CloudPage with an auto-generated GUID
• Pass the GUID as a parameter in the redirect URL
• Use AMPscript or SSJS to generate and store the GUID
• Test your CloudPage and redirect URL to ensure correct subscriberkey passing
• Consider using a custom web form instead of Smart Capture
• Use a server-side session or cookie to store the subscriberkey
• Use URL personalization with _subscriberkey to pass the subscriberkey in the redirect URL

Frequently Asked Questions

What is the best way to generate a unique subscriberkey in Smart Capture?

The best way to generate a unique subscriberkey in Smart Capture is to use a hidden field with %%=GUID()=%%.

How can I pass the subscriberkey to the next page in a redirect?

You can pass the subscriberkey to the next page in a redirect by using a CloudPage with an auto-generated GUID and then passing that GUID as a parameter in the redirect URL.

What is the difference between using AMPscript and SSJS to generate a GUID?

AMPscript is a client-side scripting language, while SSJS is a server-side scripting language. Using SSJS to generate a GUID provides more security and flexibility.

Can I use a custom web form instead of Smart Capture?

Yes, you can use a custom web form instead of Smart Capture. Custom web forms provide more flexibility and control over the form data and redirect process.

How can I test my CloudPage and redirect URL to ensure correct subscriberkey passing?

You can test your CloudPage and redirect URL by using a tool like Postman or cURL to simulate a form submission and verify that the subscriberkey is being passed correctly.