Workaround for CustomField Opening Balance.

We can use customfield to breakdown the financial report.
Mostly the requirement would be to see the customfield breakdown on the Profit & Loss report, which normally wont be needed for Opening Balance.

But if you need to see the breakdown on the opening of Balance Sheet account, one option to look is to separate the account based on the customfield option.

I.e. if you need to see the balance on the Petty cash account from your store. You can break it down based on Account code - Petty Cash Store ABC; Petty Cash Store XYZ.

But for Inventory account, if the product is a single product that need to be use across the whole store, then you cant break it down by account.
Because if we break it, we will need to consolidate the same product manually on the stock report.