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Unable to submit the AEM form. Getting the error atttached.


Level 1

29.08.2023 13:36:22.582 *WARN* [ [1693296382578] POST /content/forms/af/dataTestForm HTTP/1.1] org.apache.sling.servlets.post.impl.SlingPostServlet Exception while handling POST on path [/content/forms/af/dataTestForm] with operation [org.apache.sling.servlets.post.impl.operations.ModifyOperation]
java.lang.IllegalArgumentException: Can't create child on a synthetic root


Checked permission In local I am using ADMIN user which has all the rad /write privilege. Tried by providing local host IP instead of hostname. Logs is attached.


Using cloud SDK in local runnign ver Java 11.

AEM Version : aem-sdk-2023.6.12255.20230608T053118Z-230400

AEM form Version : aem-forms-addon-2023.07.04.00-230601.far



Any resolution for this ?

3 Replies


Employee Advisor


What is the submit action you're using- Is it REST? I wanted to check why you are posting the data to another form. It should ideally be a servlet call.

Did you try to change the hostname to FQDN instead of localhost?

I see the below-mentioned error msg for the submission. 

Couldn't post data to for form /content/forms/af/test-adpative-form-2408/jcr:content/guideContainer
29.08.2023 13:36:22.588 *ERROR* [ [1693296379987] POST /content/forms/af/test-adpative-form-2408/jcr:content/guideContainer.af.submit.jsp HTTP/1.1] com.adobe.aemds.guide.service.impl.RESTSubmitActionService [AF] [Submit] HTTP Status code: 500, reason phrase is :Server Error for form /content/forms/af/test-adpative-form-2408/jcr:content/guideContainer



Level 1

Yes its coming when I am using submit action provided in forms. 


I have replaces http://localhost to the path where i wan to post in the form. Still this issue is there.


No client side customization is done on the form


Level 4

Which kind of submit are you using email config?