Close contract CLM and integration con ECC

Hello,

we are implementing CLM but we dont have integration yet, I wanted to ask how integration with ECC works when you close a contract? We have one scenario in when we close the contract in CLM but in ECC we still line items pending but we dont want to use that services anymore, so if we colse the contrct in CLM it will be blocked those line items in ECC?

Thanks in advance for your help