Google sheets - What do I need to do on the google side to enable sheets editing?

Right now I’m getting:
“error”: {
“code”: 403,
“message”: “Request had insufficient authentication scopes.”,
“status”: “PERMISSION_DENIED”
}
But only when I try to alter sheets. When I just try the node.js connect action, it returns okay.
I have APIs enabled on the google api developer page, but Not sure what else I need to do, like in regards to oath etc. For Auths I’ve just connected the account that owns the sheet.