Change version is not getting created for SRM contract using BAPI

Hi Team,

Change version is not getting created after updation of SRM contract. I have used below BAPI to updated contract price and MPN.

BBP_PROCDOC_GET_CHANGE_VERSION

BBP_PD_CTR_GETDETAIL

BBP_PD_CTR_UPDATE

BAPI_TRANSACTION_COMMIT

fields are getting updating in BBP_PD and SRM portal as well but change version is not getting created.

Please can you help us to resolve this issue.

Thanks in advance

Dipak