Error: Conditional Update Error DynamoDB

Answered by Rafal Wilinski
What's Causing This Error
An error in a conditional update in DynamoDB will probably cause ConditionalCheckFailedException. You will get a message saying "the conditional request failed" in such instances. This scenario happens when the attribute's actual value does not match the expected value from the condition.
Solution: Here's How To Resolve It
If there is a mismatch, recheck the values and verify whether they are accurate.
Other Common DynamoDB Errors (with Solutions)
- DynamoDB stream not working
- Boto3 DynamoDB KeyError
- dynamodb connection timeout
- DynamoDB Scan Not Working
- DynamoDB Error 413
- ImportError: No module named boto3 (DynamoDB)
- could not unconvert attribute dynamodb
- dynamodb query not returning the full item
- DynamoDB Internal Server Error
- dynamodb: one or more parameter values were invalid: type mismatch for index key
- failed to begin subsegment named 'amazondynamodbv2': segment cannot be found.
- DynamoDB ConditionalCheckFailedException
- requested resource not found aws dynamodb
- DynamoDB Query Limit Not Working
- boto3 dynamodb unable to locate credentials
Tired of switching accounts and regions? Use Dynobase.
Try 7-day free trial. No credit card needed.
Product Features
DynamoDB Tools
DynamoDB Info
© 2026 Dynobase