Stumped on setting a warning when LineTotal (CuryLineTotal) is less than 50

Question

I’m new to Acumatica and trying to get my head around adding what seems like a simple customisation. I've been trying to get a warning to show when the line total is less than 50 on a Sales Order. I have looked at other examples of how to raise a warning and tried various things but I’m not entirely sure what event handler it should go in as it’s not a user updatable field. I also think I should be using a different method to show the error but not sure what.

The following is what I have:

protected void SOOrder_CuryLineTotal_FieldVerifying(PXCache cache, PXFieldVerifyingEventArgs e, PXFieldVerifying InvokeBaseHandler)
    {
      if(InvokeBaseHandler != null)
        InvokeBaseHandler(cache, e);
      var row = (SOOrder)e.Row;

      if (row == null) return;

      if (row.CuryLineTotal < 50)
      {
        throw new PXSetPropertyException("The order total is below the Wholesale minimum of $50.", PXErrorLevel.Warning);
      }

    }

The error gets thrown as a message box on the screen before I even get to open the order that has a lower value for the Line Total. I just want it to show a warning exclamation mark next to the Line Total if it’s less than 50 once the Sales Order is displayed.

Sorry if this is a noob question.

Naveen Boga · Accepted Answer

@ppowell The right place to write a code related to warning messages is RowEelected event, instead field selecting or field updated.

ppowell · Answer

After scouring the source code for PX.Objects.SO.SOOrderEntryExternalTax I found the right code now.

For anyone else who runs into this:

PXUIFieldAttribute.SetWarning<SOOrder.curyLineTotal>(cache, e.Row, "The order total is below the Wholesale minimum of $50.");

I put it under FieldUpdated and FieldSelected event handlers.

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