thanks @The Usual Suspect
this was a good read, but unfortunately, if i understand the above correctly, I think my situation is slightly different because we inadvertently deleted the object mapping in the deployment account. this means that the object mapping between deployment accounts and customer accounts are broken so it seems like we are at a point of no return. however, it would seem to me that we could still use this to fix this issue, but at a per customer level, as customers would each have to install the anchor bundle to preserve their data or we would need to find a way to migrate their data
I’ve been in contact with their dev team and they might have an unofficial/backdoor process to help restore the object mappings, but I don’t think I should hold my breath