How to increase maximum amount of order more than 100 million

[Kakeya]

Hi,

I'm looking for the solution related to title.

By default of Magento, it's only 100 million but it's too small digit for Vietnamese dong.

<What I did>

- Change type of some fields of these tables from decimal(12,4) to decimal(24,4).

  +cataloginventory_stock_item

  +cataloginventory_stock_status

  +catalog_product_entity_decimal

  +catalog_product_index_price

  +catalog_product_index_price_tmp

  +catalog_product_index_price_final_tmp

- Change constant definition

  +MAX_QTY_VALUE -> 99999999999.9999

  +MAXIMUM_AVAILABLE_NUMBER -> 99999999999

<Current status>

- Able to calculate total amount over 100 million and sub-total on Shipping Cart screen and values on order confirmation email are correct

- Sub-total on minicart and Summary on right column of Shipping Cart screen is still wrong and always show 100 million when total amount is over 100 million.

<What I want to know>

How can I show up correct sub-total and grand total on minicart and Summary on right column of Shipping Cart screen?

[jeffrytj]

We are facing the same problem here. We need solution to set product and checkout above 100 million. Need this solution for both Magento version 1.9 and version 2.