Update Brotherton Accounting

Brotherton-Accounting.md

@@ -1,3 +1,5 @@
+### Current State
+
 How they handle AR (for SNW/Lowe/NUCO):
 - Estimate: "standard employees" create estimates in QBO and send to customer
 - Invoices: "standard employees" create invoice in QBO and send to customer
@@ -13,4 +15,9 @@ How they handle AR (for SNW/Lowe/NUCO):
 - Checks and credit cards are handled at different times, but eventually are entered as payments into both QBO and QBD. They may be batched and recorded into QBD as lump sums.
 
 Company Structure:
-- All companies are accrued, but they report the sales tax on a cash basis
+- All companies are accrued, but they report the sales tax on a cash basis
+
+### ERPNext Design
+
+- Custom report for transferring journal entries from ERPNext to QB at the end of each month. To start will just be shown in the UI, in the future we may add a custom CSV export that formats the entries in a way that is easy to import into QB Desktop.
+- A "locking" mechanism to prevent modifying entries in the past month, which will be a server script on the before save action of Sales Invoice and Payment Entry that throws an error if the posting date of the entity is in a previous month and the current user does not have a custom override permission