10001159 
Message
%s items in batch %s are already allocated to another sales document
Diagnosis
In the Batch Number Selection window, in the Available Batches area, you have attempted to select items from a batch. However, some of the items in the batch have already been allocated to another sales document.
Procedure
Do one of the following:
In the Batch Number Selection window, in the Available Batches area, in the Selected Qty column, select a quantity of items that is not more than the difference between the amounts in the Available Qty and Allocated Qty columns.
Select items from a batch that contains enough items to meet your requirements.
Change the allocated quantity in the relevant sales document.