Short version: your flow tried to insert a string into the

DEFENDER.DESCRIPTION

column that’s longer than the column’s defined maximum. The database blocked the insert rather than silently truncating it. Why it happens - The error is from Snowflake-style DML: the value for

DESCRIPTION

exceeds the column’s VARCHAR length (e.g., VARCHAR(255), VARCHAR(500), etc.). Ways to fix it (pick one) 1) Increase the column size (preferred if you want to keep full text) - See current definition:

DESC TABLE DEFENDER;

- Enlarge the column (example to 4000 chars):

ALTER TABLE DEFENDER
  ALTER COLUMN DESCRIPTION SET DATA TYPE VARCHAR(4000);

- Or allow Snowflake’s max (no length specified, up to 16 MB):

ALTER TABLE DEFENDER
  ALTER COLUMN DESCRIPTION SET DATA TYPE VARCHAR;

Docs: Snowflake ALTER TABLE, Text (STRING/VARCHAR) 2) Truncate the value before insert (if you’re okay losing overflow) - In SQL:

INSERT INTO DEFENDER (...)
SELECT ..., LEFT(description, 4000)
FROM ...;

- In Python/Pandas before loading:

df["DESCRIPTION"] = df["DESCRIPTION"].astype(str).str.slice(0, 4000)

3) If you’re loading with COPY INTO (not regular INSERT), you can set TRUNCATECOLUMNS=TRUE on the file format to auto-truncate long strings: Docs: COPY INTO options (TRUNCATECOLUMNS) Next steps - Can you confirm you’re writing to Snowflake and share the current definition of

DEFENDER.DESCRIPTION

(run

DESC TABLE DEFENDER;

and paste the row)? I can suggest the exact ALTER or truncation approach based on that.