Hi @interesting_Odyssey618c and @Manan Joshi,
Thanks for your patience while I checked on this.
For a native C++ InDesign SDK plug-in, since your current macOS .pkg is not being accepted through the Adobe Exchange submission workflow, the Exchange team can provide guidance on the appropriate packaging and submission process for your specific plug-in.
You can contact the Adobe Exchange / Developer Distribution team directly at ccintrev@adobe.com. This is a public-facing support address listed in the Adobe Developer Distribution FAQ for developers who need assistance with Exchange submissions:
https://developer.adobe.com/developer-distribution/creative-cloud/docs/guides/faq/#im-stuck-can-you-help-me
You can also refer to the current Developer Distribution submission documentation here:
https://developer.adobe.com/developer-distribution/creative-cloud/docs/guides/submission/overview/
I’d recommend sharing the details of your native C++ InDesign plug-in and the issue you’re encountering with the .pkg submission with the Exchange team. They should be able to confirm the currently supported packaging format/workflow and advise on the available options for paid/subscription plug-ins, including licensing and entitlement handling.
@Manan Joshi, thanks for flagging this and helping get the right guidance for the community.
Hope this helps you move forward with the submission.
Thanks!
Abhishek