The error message "Cannot render, too many categories. Received 308. Maximum supported 300" is returned in the ArcGIS Enterprise Dashboard pie chart when using data stored in the AWS RDS geodatabase.

Solución alternativa

When using the same workflow in an on-premise PostgreSQL geodatabase, the pie chart renders correctly. When using a hosted feature layer instead of a registered feature layer, the pie chart also renders correctly.

Pasos para reproducir