Inventory Transaction data flow

Inventory Transaction Tables
This article will help to understand table structure which supports material  transactions in Oracle E-business suite (R12). 

•       MTL_TRANSACTIONS_INTERFACE: This is the interface point between non-Inventory applications and the Inventory transaction module. The Transaction Manager concurrent program polls this table at a user-specified process interval and submits the transaction workers to process them. Processing consists of data derivation, validation, and transfer of records from MTL_TRANSACTIONS_INTERFACE, MTL_TRANSACTION_LOTS_INTERFACE, and MTL_SERIAL_NUMBERS_INTERFACE into their respective TEMP tables, from where they are processed by the transaction processor.

•       MTL_MATERIAL_TRANSACTIONS_TEMP: This table is the gateway for all material transactions. Records are processed from this table into Inventory through the transaction processor. All Inventory transaction forms write directly to this table. Outside applications must write transaction records to MTL_TRANSACTSIONS_INTERFACE TXN Processor makes use of TXN worker to process the transactions from MTL_TRANSACTIONS_INTERFACE to MTL_MATERIAL_TRANSACTIONS_TEMP and from MTL_MATERIAL_TRANSACTIONS_TEMP to MTL_MATERIAL_TRANSACTIONS..

•       MTL_MATERIAL_TRANSACTIONS: This table stores a record of every material transaction or cost update performed in Inventory. Records are inserted into this table either through the transaction processor or by the standard cost program. The primary key is TRANSACTION_ID.

•       MTL_TRANSACTION_ACCOUNTS: This table holds the accounting information for each material transaction in MTL_MATERIAL_TRANSACTIONS. Oracle Inventory uses this information to track the financial impact of your quantity moves.