AEM Generate dynamic number based ID when creating a new content fragment?

Hi @spidey1405,

This is not possible using OOTB AEM Content Fragments functionality. However there are some option that you could consider:

• Try to utilize jcr:uuid property that is automatically set by AEM - this is stored on root node of each created Content Fragment.
  • https://developer.adobe.com/experience-manager/reference-materials/spec/jcr/1.0/4.9_Referenceable_Nodes.html

• Create custom component that you will be able to add while you defining your Content Fragment Model, below is an example of how this can be implemented - of course you will have to implement logic that will generate ID by yourself.
  • https://blogs.perficient.com/2020/10/20/adding-a-color-picker-to-the-aem-content-fragment-model-editor/
  • https://experienceleague.adobe.com/docs/experience-manager-65/developing/components/components-content-fragments.html?lang=en
• Develop custom Event Handler or Sling Post Processor that could add ID value on the fly - during Content Fragment creation
  • https://sling.apache.org/apidocs/sling5/org/apache/sling/servlets/post/SlingPostProcessor.html
  • https://github.com/Adobe-Consulting-Services/acs-aem-samples/blob/master/core/src/main/java/com/adobe/acs/samples/servlets/impl/SlingPostProcessorSample.java
  • https://sling.apache.org/documentation/bundles/apache-sling-eventing-and-job-handling.html
• Develop custom Workflow Model that will set the ID and will be triggered by Workflow Launcher - this alternative to Event Handling/Sling Post Processor option
  
  • https://experienceleague.adobe.com/docs/experience-manager-65/administering/operations/workflows-starting.html?lang=en
  • https://experienceleague.adobe.com/docs/experience-manager-65/developing/extending-aem/extending-workflows/workflows-models.html?lang=en

Personally, I would go with custom component, because it will clearly define that this dynamic ID is part of your content fragment structure/schema.