The Affluent connector in Supermetrics can fetch dimensions and metrics of the SKU sub-type, but the SKU fields are not compatible with every other field in the connector. Using fields that aren’t compatible with each other in the same query can cause an internal server error.
To avoid internal server errors, only include dimensions and metrics with the “SKU” prefix in the same query. Don’t combine them with other field types. You can identify the SKU dimensions and metrics from the “SKU” group in the field selection.
You must always select at least one “SKU” dimension and one “SKU” metric in the same query.