Hi @development93,

You can disable the action in the RowSelected event. Below is an example, 

    public class APPaymentEntry_Extension : PXGraphExtension<PX.Objects.AP.APPaymentEntry>
    {
        #region Event Handlers

        protected void APPayment_RowSelected(PXCache cache, PXRowSelectedEventArgs e, PXRowSelected baseHandler)
        {
            baseHandler?.Invoke(cache, e);
            var row = (APPayment)e.Row;
            CAReconEntry.CATranExt ReconcileCheck = PXSelect<CAReconEntry.CATranExt,
                Where<CAReconEntry.CATranExt.origRefNbr, Equal<Required<APPayment.refNbr>>>>
                .Select(Base, Base.Document.Current.RefNbr);
            if (ReconcileCheck != null && ReconcileCheck.Reconciled == true)
            {
                Base.voidCheck.SetEnabled(false);
            }

        }
        #endregion
    }

The above query is to fetch CAReconEntry.CATranExt based on the Check and Payments RefNbr, you can update the query and condition below it to match your requirements.

Thanks, 

Hi, you may want to check out these related items:

The first one, I have already provided a suggestion around how to restrict this access and the second one it an idea request to add this feature as a stock item.