Upgrading SIM from 13.1 to 14.1 - How do I set up sales fed from RESA 13 using the new pos_transacti

We are in the process of upgrading from SIM 13 ,where we used the resafileparser to load files created by  RESA 13 (POSU). We are now using  SIM 14.1 in DEV where we use SIMT.. files and the pos_transaction process.  I have loaded the sales into SIM 14 and it is successfully recorded in the POS_TRANSACTION table with cols  SOURCE_TYPE = 1 and TYPE= 1 and RESA_CREATED = 'N'.    THese are picked off and are processed into the MPS_STAGED_MESSAGE table and are marked as PROCESSED = 'Y'.   I expect to see the STORE_ITEM_STOCK tables to be updated but this does