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I am creating a solution where I need to use TMF 651 agreement management API.

I have to trigger a request from a CRM System and it will reach to the Contract Management(CM) system via APIM and Microservices(MS). Now a user needs to approve or reject the request in CM. After the User action on the request (Approve/Reject) I needs to Inform CRM to proceed further.

Request Integration Flow: CRM -> APIM -> MS -> CM

Response Integration: CM (Start) - ? - ? - ? - ? - ? - ? CRM (End) 

What are the possible ways to provide the response from CM to CRM?

Hi Shashi 

Does your approval request contain Agreement/Contract entity or you are just using it for an approval. If its only for approval I would suggest to use a simple API for this as I see if you are using microservice that means you are doing a TMF to Non TMF transformation.

In any case for Approval response there are two options  

1- Use a call-back API to send Approval repose via same way for guaranteed delivery 

2- Use Event-driven model, where CM publishes a standard AgreementStateChangeEvent to an event bus (e.g., Kafka). CRM subscribes to this event and processes the response independently.

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Himanshu Sharma
BT Group plc
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