Deficit of SL Unrestricted-use 1 EA : (Notification E M7 021).

Hi Experts,

I am facing problem with the error " Deficit of SL Unrestricted-use 1 EA :  (Notification E M7 021) " in CRM service contract.

My issue is when we are confirming the service contract it will create a goods moment automatically in SAP ECC and it will provide information back to CRM.Now the issue is if quantity is not available then it throwing this error  " Deficit of SL Unrestricted-use 1 EA : (Notification E M7 021)" and some times even we have some stcok also we are getting this error.　Because of this error message we are unable to close the service contract in CRM .

So can you please let me know what may be root the cause to cause this issue.

Thanks in advance..

Krishna