Error: DynamoDB error 400

Answered by Rafal Wilinski
What's Causing This Error
The "DynamoDB error 400" is a general error code indicating that the client has made an invalid request. It can be caused by a variety of issues, such as:
- Missing or invalid required parameters.
- Unsupported operations or parameters.
- Incorrect data types.
- Incorrect table or index name.
- Missing or invalid credentials.
- Incorrect permissions.
- Exceeding the provisioned throughput.
- Issues with the SDK or client being used.
Solution: Here's How To Resolve It
To solve this error, you can take the following steps:
- Verify that all required parameters are included in the request and that they are in the correct format.
- Check the operation or parameter being used to ensure the service supports it.
- Verify that the data types of the parameters are correct and match the expected data type.
- Check that the table or index name specified in the request is correct.
- Verify that the credentials and permissions provided in the request are correct and have the necessary permissions to access the service.
- Check the provisioned throughput and increase it if necessary.
- Verify that the SDK or client being used is configured correctly and that all necessary dependencies are installed.
- Check the request payload, headers, and URL for any typos or other mistakes.
- If the issue persists, you may contact AWS support for further assistance.
- You can also check the CloudWatch logs for a more detailed error messages and troubleshoot the issue accordingly.
Other Common DynamoDB Errors (with Solutions)
- sls dynamodb install not working
- dynamodb index does not exist
- DynamoDB type is not supported
- dynamodb property projection cannot be empty
- dynamodb getItem() is not a function
- ValidationException: Invalid KeyConditionExpression: Attribute name is a reserved keyword;
- AWS Lambda DynamoDB Stream Error
- DynamoDB attribute not empty
- DynamoDB BatchSave not working
- DynamoDB ValidationException: Query condition missed key schema element
- One or more parameter values were invalid: some AttributeDefinitions are not used
- dynamodb condition does not exist
- DynamoDB Local NoClassDefFoundError
- dynamodb update fail if not exists
- could not connect to the endpoint URL dynamodb
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