Faster Bulk loading

is there a way to do change reference in bulk. I have 200 schema content of same type and I need to change a reference they hold in one go.

You need to change all references of this field. Then you can use the method described here:

It is not deployed to the cloud yet.

When is it going to be available on cloud?

It is available now.

where can i execite the bulk api, in graphql?

It is not available in graphql.

Can you show me where to execute the bulk api. Is there a rest call i can make, I wasn’t able to find documentation around that