I can’t remove the attribute from AlternateID.

HI All,

Thank you all for your help! I was able to solve the issue after all. Here is my solution.

        #region AlternateID || Added custom modification by Biz_Vahe
        [PXMergeAttributes(Method = MergeMethod.Merge)]
        [PXRemoveBaseAttribute(typeof(AlternativeItemAttribute))]
        [BZAlternativeItem(INPrimaryAlternateType.CPN,
            typeof(SOLine.customerID),
            typeof(SOLine.inventoryID),
            typeof(SOLine.subItemID),
            typeof(SOLine.uOM),
            typeof(SOLine),
            typeof(BZSOLineExt.usrBZIsReplacedKit))]
        protected virtual void SOLine_AlternateID_CacheAttached(PXCache sender) { }
        #endregion

    public class BZAlternativeItemAttribute : AlternativeItemAttribute
    {

        private readonly Type _dacType;
        private readonly Type _flagFieldType;

        public static bool IsActive() => true;
        public BZAlternativeItemAttribute(INPrimaryAlternateType primaryAltType, Type bAccountID, Type inventoryID, Type subItemID, Type uom, Type dacType, Type flagFieldType) : base(primaryAltType, bAccountID, inventoryID, subItemID, uom)
        {
            _dacType = dacType;
            _flagFieldType = flagFieldType;
        }

        public override void RowInserting(PXCache sender, PXRowInsertingEventArgs e)
        {
            if (!IsReplacedKit(sender, e.Row))
            {
                base.RowInserting(sender, e);
            }
        }

        public override void RowUpdating(PXCache sender, PXRowUpdatingEventArgs e)
        {
            if (!IsReplacedKit(sender, e.Row))
            {
                base.RowUpdating(sender, e);
            }
        }

        private bool IsReplacedKit(PXCache cache, object row)
        {
            if (row == null)
                return false;

            if (!_dacType.IsAssignableFrom(row.GetType()))
                return false;

            string flagFieldName = _flagFieldType.Name;
            object rawValue = cache.GetValue(row, flagFieldName);
            return rawValue is bool flag && flag;
        }
    }
}