ahrefs needs to provide a reporting template with a data extract source.
Trying to copy/paste the normal site explorer fields into a data extract source doesn't work as there are too many fields.
You tell customers to create a data extract source if they don't want their credits drained everytime the LookerStudio report is opened, yet you don't provide any clear instructions.
Please at least provide step by step instruction for this, including how to split the extract sources and then where to link them to in Looker Studio. A template users could copy here would go a long way. Thanks!