How to set DynamoDB Read/write capacity mode to On-demand on CloudFormation

Question

I've seen this site about DynamoDB On-demand and I updated my tables, created by CloudFormation, to On-demand. Now, when I try to update my Stack, I get this error:

One or more parameter values were invalid: Neither ReadCapacityUnits nor WriteCapacityUnits can be specified when BillingMode is PAY_PER_REQUEST

Is there a way to set DynamoDB Read/write capacity mode to On-demand on CloudFormation?

EDIT:

I've updated to On-demand on AWS Console.

EDIT 2:

My template:

DynamoDBUsersTable:     Type: AWS::DynamoDB::Table     Description: Users table     Properties:       TableName: !Sub ${StackName}-users-table       AttributeDefinitions:         - AttributeName: userId           AttributeType: S       KeySchema:         - AttributeName: userId           KeyType: HASH       ProvisionedThroughput:         ReadCapacityUnits: 10         WriteCapacityUnits: 10 

Thank you.

Answer 1

You need to add BillingMode: PAY_PER_REQUEST to properties and remove ProvisionedThroughput both from table properties and from all GlobalSecondaryIndexes if they specified. So finally your template have to look like:

DynamoDBUsersTable:     Type: AWS::DynamoDB::Table     Description: Users table     Properties:       TableName: !Sub ${StackName}-users-table       BillingMode: PAY_PER_REQUEST       AttributeDefinitions:         - AttributeName: userId           AttributeType: S       KeySchema:         - AttributeName: userId           KeyType: HASH