there is a new important note available for all customers who have implemented SLL_PI 22 in their R/3 system.
With this SLL-PI there is a major issue with stock transfers.
The problems are not limited to CWH, but also affect users with IPR, PUC or FTZ.
However, the problems only occur when the Material Documents are posted in bulk (more than one entry in IT_MKPF).
Posting GI for a single Delivery should not be affected, as far as I can see.
Please see note 2215142 and implement this note in your R/3 system if you are on SLL_PI22 or higher.
Otherwise there might be issues with your stock transfer postings.
SAP Product Support