Error: Error retrieving DynamoDB table item validation exception
Answered by Rafal Wilinski
What's Causing This Error
This error is caused when retrieving an item from a DynamoDB table using the incorrect primary key value. A validation exception is raised when the primary key value used to retrieve the item is not present in the table or not matching with the primary key schema defined in the table.
Additionally, you may run into this error if you are have defined additional ExpressionAttributeNames or ExpressionAttributeValues that you have not used.
Solution: Here's How To Resolve It
To solve this error, you should ensure that the primary key value used to retrieve the item is correct and exists in the table.
Additionally, ensure that all the attributes you've defined in your DocumentClient queries are used.
Other Common DynamoDB Errors (with Solutions)
- dynamodb does not accept empty set
- dynamodb stream missing fields
- dynamodb throughput error
- Error ValidationException: One or more parameter values were invalid: Type mismatch for key X expected: S actual: M
- dynamodb could not instantiate class
- Conditional Update Error DynamoDB
- dynamodb condition does not exist
- DynamoDB ConditionalCheckFailedException
- aws.dynamodb.converter.unmarshall not working
- DynamoDB FilterExpression Not Working
- dynamodb no range key value present
- DynamoDB failedbatch retry
- failed to begin subsegment named 'amazondynamodbv2': segment cannot be found.
- could not unconvert attribute dynamodb
- CORS Error DynamoDB
Tired of switching accounts and regions? Use Dynobase.
First 7 days are on us. No strings attached.
Product Features
DynamoDB Tools
DynamoDB Info
© 2026 Dynobase