Duplicate WhatsApp Group Members

I have an existing WhatsApp group whose entire membership I need copied into a fresh group. The task is purely about replicating the member list—no chat history or custom settings have to come across—so the solution can stay lean and compliant with WhatsApp limits. The current head-count is well over 100, therefore I’m looking for an automated method (API integration, approved third-party tool, or a lightweight script) that can: • Pull every existing member ID from the source group • Add them seamlessly to the new group without triggering spam flags • Provide a simple way for me to repeat the process in the future if the roster changes Please build in any required rate-limiting or invitation workflows so we respect WhatsApp’s policies. On delivery I expect the working automation, clear step-by-step setup instructions and a brief hand-off call or document so I can run it myself next time.