I have a list of members that I'm importing from our old system. Since they have unique numeric member numbers, I'd like to preserve the original member number and not muddy the waters by making that an 'External ID'.
Using import memberships, the insert option doesn't allow me to assign member IDs. the update option fails because the member IDs don't exist.
Thoughts on how to preserve the original membership IDs? Or am I out of luck?