MM中移动类型的部分英文缩写

    GI: goods issue (consumption/usage, withdrawal) or goods receipt without reference
    GR: goods receipt with reference to a purchase order or production order 
    GD: goods movement with reference to a delivery (from the Shipping component) 
    RE: return delivery, return, reversal 
    RE: returns reversal 
    TP: transfer to company's own stock 
    TF: transfer posting 
    TR: reversal of transfer posting 
    SLS: sales value receipt