In WM-PP Staging system picking next batch even stock is available in first batch
I am using WM-PP interfacing with all relevant setting required for material staging through LP10 > Create TR> Create TO in WM with background processing.
Today system while creating TO from TR picked the stock from next batch even when there is sufficient stock available in the first batch which should be picked as per FIFO strategy set in storage type.
The incident runs as below-
In Process Order RM 600000164 Qty- 403.000 is required in operation 20
Stock available in IM and WM both-
Batch-A 1160.000 received on 12 Dec 14
Batch-B 4400.000 received on 16 Jan 15
While creating TO from TR in Background system picked
From Batch-A 303.000
Here system should have picked all 403.000 qty from batch-A only as all the qty in the batch-A is available stock both in IM and WM.
Please suggest the reason for this type of behaviour and how this can be controlled as this is a big deviation.
Thanks in advance