Linking to PDC Units in SAP Retail Store 
Use
SAP Retail Store supports the use of handheld terminals (PDC units) in the following areas:
You can transfer your stores' requirements that were entered using a handheld system directly to the system.
You can transfer the count results for a physical inventory that were entered using a handheld system directly to the system.
You can transfer your stores' goods receipts that were entered using a handheld system directly to the system.
Integration
Once you have entered the data using a handheld terminal, you store it as an ASCII file. SAP Retail Store reads the data from this file and processes it.
Prerequisites
The following general prerequisites relating to the content of the PDC file apply for SAP Retail Store:

SAP reserve the right to change the format of the PDC file in future releases of the SAP System. This may mean that you need to adjust the PC software you use to upload data from the PDC unit and create the PDC files.