What causes Snowflake Iceberg Table Not Found / Not Accessible?

External volume (S3/Azure/GCS) not accessible due to changed storage credentials or IAM policy. Iceberg metadata files deleted or moved in the external storage location. Catalog integration (Glue, Polaris, REST catalog) credential expired or revoked. Iceberg table created in another Snowflake account and not shared correctly. BASE_LOCATION path changed without updating the Iceberg table definition

How do I fix Snowflake Iceberg Table Not Found / Not Accessible?

Verify the external volume is accessible: `DESCRIBE EXTERNAL VOLUME `. Check storage integration credentials and IAM policies in the external cloud provider. For catalog-managed Iceberg tables, verify the catalog integration is active: `DESCRIBE CATALOG INTEGRATION `. Confirm the BASE_LOCATION still contains the Iceberg metadata files (especially `metadata/` directory). If catalog credentials expired, rotate them in the external catalog and update the Snowflake integration. Use `SHOW ICEBERG TABLES` to list available Iceberg tables and verify the table is visible

High severityobject management

Power BI Refresh Error:
Snowflake Iceberg Table Not Found / Not Accessible

What does this error mean?

A query or DML operation on a Snowflake-managed or externally managed Iceberg table failed because the table metadata location, external volume, or catalog integration is missing or inaccessible.

Common causes

1External volume (S3/Azure/GCS) not accessible due to changed storage credentials or IAM policy
2Iceberg metadata files deleted or moved in the external storage location
3Catalog integration (Glue, Polaris, REST catalog) credential expired or revoked
4Iceberg table created in another Snowflake account and not shared correctly
5BASE_LOCATION path changed without updating the Iceberg table definition

How to fix it

1Verify the external volume is accessible: `DESCRIBE EXTERNAL VOLUME <volume>`
2Check storage integration credentials and IAM policies in the external cloud provider
3For catalog-managed Iceberg tables, verify the catalog integration is active: `DESCRIBE CATALOG INTEGRATION <integration>`
4Confirm the BASE_LOCATION still contains the Iceberg metadata files (especially `metadata/` directory)
5If catalog credentials expired, rotate them in the external catalog and update the Snowflake integration
6Use `SHOW ICEBERG TABLES` to list available Iceberg tables and verify the table is visible

Frequently asked questions

What is the difference between a Snowflake-managed and externally-managed Iceberg table?

Snowflake-managed Iceberg tables store metadata in Snowflake's managed storage. Externally-managed tables use a REST catalog (Glue, Polaris, etc.) and require a catalog integration. Both require an external volume for the actual data files.