Short Version:

This issue is related to the fact that Gen. Journal Posting does not allow Entry Type 'Payment' have a Negative Amount for Vendors.

I have created an Open Source PTE to resolve this: https://github.com/TheDoubleH/BCVoidPayment

Long Version:

From a Technical perspective, here is the issue:

When a User voids a check from the Check Ledger Entries page, A call is made to Codeunit 367 – CheckManagement -> Function FinancialVoidCheck


That function sets the Document Type to “ “ (Blank), which leads to the Vendor Ledger Entry to have a Blank Entry Type.



While the Check Ledger is flagged as Voided and the Balance is correctly adjusted, the Detail Vendor Ledger Entry will not tell a complete story;
If We look at Check 206, the ‘initial’ Detailed Vendor Ledger Entries created end up like this:


The issue is that the Calculation formula for the Payments (LCY) Field on the Vendor Table, filters for Entry Type = Initial Entry, “Initial Document Type” = Payment (And Vendor No and other fields)


And THIS leads the Payment to show an incorrect amount on the Vendor Statistics Factbox


By now, I hope You realize that this is indeed an issue that needs to be resolved.

How do we fix it?
I suspect that the Document Type is left blank, due to the fact that codeunit 11 - Gen. Jnl.-Check Line prevents a Vendor Payment with a Negative Amount (Which makes perfect sense).

Luckily the Check Management Financial Void Check function sets a field: “Financial Void” to true. This means, that we have a possibility to negate the Negative Amount for Vendor Payments in CU11, as well as Positive Amounts for Customer Refunds.