@fprogrammer , Which forms are you using Foundation Components based forms or Core Components based forms?

@MohammadUs2 , did you try @Utkarsh_24 's suggestion?

The following article provides links to download the latest designer:  https://experienceleague.adobe.com/en/docs/experience-manager-release-information/aem-release-updates/forms-updates/aem-forms-releases You would require access to Adobe Software Distribution portal to download the designer. 

Can you elaborate your use case? We may have different means to achieve it. 

AEMaaCS does not include Letters / Correspondence Management. 

You can create a custom function and invoke it using a rule. The following documentation provides detailed information about custom functions along with examples:https://experienceleague.adobe.com/en/docs/experience-manager-cloud-service/content/forms/adaptive-forms-authoring/authoring-adaptive-form...

@aravindS , Can you provide the information requested by @pankajpr to help you further?  

@patrickpai , please confirm the information @sudhansh has asked to help you further. 

@koolForms AEM 6.5.23.0 Release is officially scheduled for June 6, 2025. The release notes with relevant docs would are scheduled to published on June 6, 2025. 

This is a very specific use case of calling AEM Forms JEE APIs in Quarkus application. You can reach out to Adobe Support/Consulting teams for help on this.