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Unable to override an Action on PO screen as it has an optional parameter

  • November 26, 2025
  • 2 replies
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Joe Schmucker
Captain II
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I have the same question as this topic which never received an answer:

 

I need to override the EmailPurchaseOrder action to do a simple update to a custom field.

		public delegate IEnumerable emailPurchaseOrder(PXAdapter adapter, [PXString] string notificationCD = null);
		[PXButton(CommitChanges = true), PXUIField(DisplayName = "Email PO")]
		[PXOverride]
		public virtual IEnumerable EmailPurchaseOrder(
			PXAdapter adapter,
			[PXString]
			string notificationCD = null, emailPurchaseOrder BaseMethod)
		{
			//Logic Here

I get an error that the optional parameter must be the last item in the method.

Any solutions for this?

Best answer by aleksandrsechin

Hi ​@Joe Schmucker 
Try this approach. The only thing I changed is that the parameter BaseMethod is now optional.

public delegate IEnumerable emailPurchaseOrder(PXAdapter adapter, [PXString] string notificationCD = null);
[PXButton(CommitChanges = true), PXUIField(DisplayName = "Email PO")]
[PXOverride]
public virtual IEnumerable EmailPurchaseOrder(PXAdapter adapter,
   [PXString]
   string notificationCD = null,
   emailPurchaseOrder BaseMethod = null)
{
   //Logic Here
}


 

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Joe Schmucker, CPA | Software Engineer | Acumatica ERP Developer

    2 replies

    Jr Varsity I
    Forum|alt.badge.img+4

    Hi ​@Joe Schmucker 
    Try this approach. The only thing I changed is that the parameter BaseMethod is now optional.

    public delegate IEnumerable emailPurchaseOrder(PXAdapter adapter, [PXString] string notificationCD = null);
    [PXButton(CommitChanges = true), PXUIField(DisplayName = "Email PO")]
    [PXOverride]
    public virtual IEnumerable EmailPurchaseOrder(PXAdapter adapter,
       [PXString]
       string notificationCD = null,
       emailPurchaseOrder BaseMethod = null)
    {
       //Logic Here
    }


     

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      Joe Schmucker
      Captain II
      Forum|alt.badge.img+3

      Hi ​@aleksandrsechin  Thank you!!  That worked like a charm!!

      Translate
      Joe Schmucker, CPA | Software Engineer | Acumatica ERP Developer
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