Negotiating Contracts 
You use this business process to negotiate contracts in SAP Bidding Engine. You can:
Negotiate a new contract
Renew an existing contract that has been released already
To renew a contract that has been released already, you trigger the renewal process in the contract application of SAP SRM and the system transfers the data to SAP Bidding Engine automatically. The supplier then submits new contract details or updates existing ones, such as target value or conditions. If you accept the updated data from the supplier, the data is transferred to the existing contract.
This business process is modified if you have activated the SRM Service Procurement Innovations (SRM_SERVICE_PROC_1) business function. See process steps Negotiate contract and Renew contract below.

The following business process runs in SRM Server:
Search for contracts
Negotiate contract
This process step is modified if you have activated the SRM Service Procurement Innovations (SRM_SERVICE_PROC_1) business function. In this case, you can create a new contract with service hierarchies out of a winning bid.
Renew contract
This process step is modified if you have activated the SRM Service Procurement Innovations (SRM_SERVICE_PROC_1) business function. In this case, you can update an existing contract with service hierarchies out of a winning bid.
Update contracts via mass update