The Determine direct job cost accounts option has an affect on the job costing transactions when inventory codes are used within an expense invoice, inventory transfer, or sales invoice. This option is set within the general tab of Job Costing > Options as shown below:

The additional G/L transactions are created for the individual processes listed below. Note that the standard purchase, sales, accounts payable, and accounts receivable transactions are not listed.
Inventory Transfer in the Job Costing menu
If the inventory item within the transfer list is classified as track count then the following transaction is created:
Inventory Asset Account found in the inventory item's advanced tab Credit
Transactions are only posted to this account if the Inventory Method is set to Perpetual within Inventory > Options window.
Otherwise the inventory item is classified as no count and the following transaction is created:
Inventory Variance Account found in the inventory item's advanced tab Credit
Review the Inventory > Track Inventory Counts > Inventory Variance section of the main EBMS manual for more details on the inventory variance account
If the Determine Direct Job Cost option is enabled within Job Costing > Options then the following transaction is created:
Inventory Expense Account found within the advanced tab of the stage Debit
The advanced tab graphics on the following page shows an expense account.
Otherwise the following transaction is created:
Inventory Variance Account found in the inventory item's advanced tab Debit
Expense invoice details lines that contain job information. The transactions created from an expense invoice detail with job costs are identical to the standard expense invoice transactions (with no job) and the Inventory Transfer transactions listed above.
If the inventory item within the transfer list is classified as track count then the following transaction is created:
Inventory Asset Account found in the inventory item's advanced tab Debit
Inventory Asset Account (Standard purchase transaction Credit
The following transaction is created for all inventory items, both track count and no count items:
Inventory Variance Account found in the inventory item's advanced tab Credit
Review the Inventory > Track Inventory Counts > Inventory Variance section of the main EBMS manual for more details on the inventory variance account
If the Determine Direct Job Cost option is enabled within Job Costing > Options then
Inventory Expense Account found within the advanced tab of the stage Debit
See the following advanced tab graphics depicting the inventory expense account.
Otherwise the transaction is posted to the
Inventory Variance Account found in the inventory item's advanced tab Debit
The Inventory Expense Account is only visible when the Determine direct job cost account is enabled. Open any job stage and click on the Advanced tab as displayed below:

Review the Entering Job Stages section for more details about stages.