What causes Row Access Policy Error?

The row access policy mapping table does not include the executing role, causing the policy to return no rows for all queries. The policy body references a mapping table that was dropped or does not exist. A pipeline's service account role was recently changed and the new role is not in the policy mapping. The policy was applied to a table used by a Dynamic Table, triggering a refresh error or reinitialization

How do I fix Row Access Policy Error?

Test the policy with the failing role: `SELECT * FROM TABLE(INFORMATION_SCHEMA.POLICY_REFERENCES(REF_ENTITY_NAME=>' '))` to confirm the policy is applied.. Check the policy mapping table to verify the executing role has a row: `SELECT * FROM WHERE role = CURRENT_ROLE()`.. Add the service account role to the mapping table with the appropriate access condition.. For Dynamic Tables affected by row access policies: consult the Snowflake documentation on Dynamic Table RAP compatibility — some RAP configurations require full refresh mode.

Medium severitycredentials

Power BI Refresh Error:
Row Access Policy Error

What does this error mean?

A Snowflake row access policy blocked a query or caused an error. The policy may be incorrectly configured, or the executing role is not mapped to any policy condition and receives zero rows.

Common causes

1The row access policy mapping table does not include the executing role, causing the policy to return no rows for all queries
2The policy body references a mapping table that was dropped or does not exist
3A pipeline's service account role was recently changed and the new role is not in the policy mapping
4The policy was applied to a table used by a Dynamic Table, triggering a refresh error or reinitialization

How to fix it

1Test the policy with the failing role: `SELECT * FROM TABLE(INFORMATION_SCHEMA.POLICY_REFERENCES(REF_ENTITY_NAME=>'<table>'))` to confirm the policy is applied.
2Check the policy mapping table to verify the executing role has a row: `SELECT * FROM <mapping_table> WHERE role = CURRENT_ROLE()`.
3Add the service account role to the mapping table with the appropriate access condition.
4For Dynamic Tables affected by row access policies: consult the Snowflake documentation on Dynamic Table RAP compatibility — some RAP configurations require full refresh mode.

Frequently asked questions

How do I verify that a row access policy is the cause of zero results?

Run the query as a role you know is in the policy mapping (e.g., SYSADMIN) — if rows appear, the policy is filtering them for the service account role. Then check the mapping table.