Hi Jürgen L,
We use non SAP system for WMS and for this particular entry data didn't flow to SAP. Also as the items were in blocked state we didn't notice this before. Running LX23 shows "no data available for the plant and storage" (Message no. L1212) but MCHB table shows that 12 items in block stock which needs to be reduced to 2.
Regards,
AK