Sales Order is not creating with reference to Quantity Contract.

Dear SAP Experts,

I am creating a Sales Order with reference to quantity contract but system showing an error *"""Material SUG10051 does not exist in RG1 Table for Excise Group 42 - Message no. ZCOMM002"""* i am not getting y system showing this error because all the necessary configuration for series group is maintained already.

Please advise me what should i do.

Looking forward for your quick response on the same.

Regards

Parul Deshwal