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High severityauthorizationSnowflake

Power BI Refresh Error:
ERR_TABLE_DOES_NOT_EXIST_NOT_AUTHORIZED

What does this error mean?

The Snowpipe Streaming channel cannot write to the target table because the table does not exist or the service account lacks the necessary privileges. The channel must be reopened after resolving the table access issue.

Common causes

  • 1The target table was dropped or renamed after the streaming channel was opened
  • 2The service account role lacks INSERT privilege on the target table
  • 3Schema evolution removed or altered columns the streaming client is writing to
  • 4The table was in a different schema than what the channel was configured with
  • 5A table swap (ALTER TABLE ... SWAP WITH) disrupted the channel's reference

How to fix it

  1. 1Verify the table exists: SHOW TABLES LIKE '<table>' IN SCHEMA <db>.<schema>.
  2. 2Grant INSERT: GRANT INSERT ON TABLE <db>.<schema>.<table> TO ROLE <role>.
  3. 3If the table was dropped and recreated, reopen the channel — it will link to the new table.
  4. 4Check schema evolution: ensure the table columns match what the streaming client is sending.
  5. 5After fixing, call client.openChannel() with the same channel name to resume with committed offset.

Frequently asked questions

Does reopening the channel pick up where it left off?

Yes — if you reopen with the same channel name, the streaming SDK resumes from the last committed offset. Rows sent after that point need to be replayed.

How does schema evolution affect the streaming channel?

If columns are added, Snowpipe Streaming can auto-evolve the schema (with ENABLE_SCHEMA_EVOLUTION=TRUE on the table). Dropped or renamed columns will cause insert failures.

Official documentation: https://docs.snowflake.com/en/user-guide/snowpipe-streaming/snowpipe-streaming-high-performance-error-handling

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