Update Custom Field in Application History tab on Payment Release & Capture

In Acumatica ERP, the Application History tab on Payments and Applications (AR302000) is backed by:

DAC: ARTranPostBal (projection, not a standard persistent DAC)

Data is created during:

Release of AR Payment

Capture (for CC payments)

The population happens deep inside the release process:

ARReleaseProcess

ARPaymentEntry.Release()

ARDocumentRelease.ReleaseDocProc()

ARReleaseProcess.ApplyARAdjustments()

ARReleaseProcess.UpdateARBalances()

Specifically:

Records related to Application History are derived from:

ARAdjust

ARTran

ARRegister

And inserted into tables like:

ARPost

ARTranPost

Then surfaced via ARTranPostBal projection
 

Correct Extension Point (Recommended)

You need to hook into the posting layer, not the UI or Payment graph.

 Best option: Extend ARReleaseProcess

Example approach:

Override or extend methods like:

public class ARReleaseProcess_Ext : PXGraphExtension<ARReleaseProcess>

{

protected void _(Events.RowPersisting<ARTranPost> e)

{

var row = e.Row;

if (row == null) return;

// Fetch related Blanket SO CustomerOrderNbr

// (via ARTran → SOOrder → Blanket Order)

row.GetExtension<ARTranPostExt>().UsrCustomerOrderNbr = "value";

}

}

​@FarhanaM60 Thank you for the clarification.
Yes, ARTranPostBal is a projection DAC.
I have tried already extending ARReleaseProcess and tried, but since this graph is used in many places, I need to carefully validate the additional conditions.
Proper handling may be required to ensure the logic works consistently across all cases.
I’ll review further and update you.