Gr with ref to SC Challan

hi guys

1.PO craeted

2.MB1B 541 goods transferd with ref to PO

3. J1if01 with ref to Mat doc

4. GR with ref to PO

when am entering SC challan number & year

its showing error as

Challan material is different from material document

Message no. 8I572

can any clarify me

nani