https://userapps.support.sap.com/sap/support/knowledge/en/3684441
3684441 - SMQ2 error "Item &1 does not exist" (VL216) for UOM Split | SAP Knowledge Base Article
https://userapps.support.sap.com/sap/support/knowledge/en/2717943
2717943 - SMQ2 Error 'HUGENERAL056 | HUGENERAL042 | VL216 | VL331 | M7018' (Item/batch not found) |...
BAPI_OUTB_DELIVERY_CONFIRM_DEC queue stuck on ERP SMQ2 with one of below errors: Enter Batch (Message No. M7018) V51VP - item was not found - process cancelled...