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Hi. From a quick glance, the policy looks to be correct.
Have you done the following as well:
- Use the Cognito ID as the hash key for DynamoDB
- Validated proper access to the KMS Key (If used) for the User.
How are you connecting the users to access the DynamoDB Table? Are you using a role that grants access to a Cognito Identity Provider and do you have a user pool group set up for your Cognito users in Cognito?
answered 2 years ago
Use the Cognito ID as the hash key for DynamoDB
hash key? The id field (Partition key) has
CognitoID#ItemUUID
How are you connecting the users to access the DynamoDB Table?
IdentityPool group has IAM policy mentioned in question.
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Can you pull the error out of CloudTrail? That should hopefully give more info.
CloudTrail just shows DescribeTable but not PutItem calls.