Integrating AWS lambda with a legacy SOAP API third party product

I need to move the data from AWS Dynamodb to the third-party legacy product which uses SOAP API. Used Eventbridge in between and we have transformed the data from JSON to XML using a lambda function. As it is not 'REST API',I am not able to push the data directly into the legacy product. So we need to use a lambda in between. How do I need to integrate the AWS lambda to that product using 'SOAP API'. NOTE: Using python in lambda.