Update Brotherton Accounting

Brotherton-Accounting.md

@@ -22,4 +22,9 @@ Company Structure:
 - 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.
   - DocType: QB Export, fields for start and end date which default to the start and end of the last month, the company (default based on user?), and a table field for QB Export Entry. Server script that runs after save that loads the GL Entries in the date range and adds QB Export Entry items to the table
   - DocType: QB Export Entry, fields for account name, credits, and debits
-- 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
+- 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
+
+### Pending questions / unknowns
+- Does Trial Balance Report work for what they need for manual entry into QB?
+- Is there an existing report for what they need for their sales tax calculations, or do we need to make one? How are they doing these calculations now?
+- Can we use tax rules to apply taxes per-customer, or do we want to add custom logic to select the correct sales tax template based on the customer's zip code?