Periodic Inventory Costing Problems

hi experts,

After i have set the periodic inventory costing under Company Details, there is no accounting impact on inventory anymore. e.g. No Journal Entry will be created after Goods Receipt PO.

However, once I want to create a Purchase Invoice, an error message " G/L account is missing" comes out.

So, I cant add any Purchase or Sales Invoice.

Is this related to periodic inventory costing ?

I have fully set up G/L Account Determination. But still pop up this error.

Pls help , thx.