I've been testing to insert a custom metadata type record from a CSV file via Salesforce CLI. I've used below command but I've been getting the following error:
sfdx force:data:bulk:upsert -i Id -f cmdt.csv -s Mapping__mdt -u email@example.com
No create/update access for object: Mapping__mdt
Please take note that I use the System Administrator profile, so I am expecting that I have the right access.
It is my first time loading custom metadata type records via CLI, hoping to incorporate Salesforce DX technology in my present and future implementations. Would like to ask for your help regarding this.