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I can’t remove the attribute from AlternateID.

  • February 12, 2026
  • 3 replies
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V
Freshman II
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Hi everyone,

I’m trying to customize SOLine.AlternateID, but the original Acumatica logic is interfering with my functionality. Specifically, I need to remove the AlternativeItemAttribute from SOLine.AlternateID.

Here’s what I tried so far:

        #region AlternateID
        [PXMergeAttributes(Method = MergeMethod.Merge)]
        [PXRemoveBaseAttribute(typeof(AlternativeItemAttribute))]
        [PXDBDefault(null,  PersistingCheck = PXPersistingCheck.Nothing)]
        [BZAlternativeItemAttribute(INPrimaryAlternateType.CPN, typeof(SOLine.inventoryID), typeof(SOLine.subItemID), typeof(SOLine.uOM))]
        protected virtual void SOLine_AlternateID_CacheAttached(PXCache sender) { }    
        #endregion

However, this doesn’t seem to remove the attribute completely. Has anyone successfully removed or replaced the AlternativeItemAttribute from AlternateID? Any guidance or best practices would be greatly appreciated.

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3 replies

zherring
Freshman II
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  • zherring
  • Freshman II
  • February 12, 2026

Instead of doing “MergeMethod.Merge” try using “MergeMethod.Replace” and just specifying the exact attributes you want. That should replace all the attributes with the ones you want.

    V
    Freshman II
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    • VaheGhazaryan
    • Author
    • Freshman II
    • February 12, 2026

    ​@zherring , MergeMethod.Replace results in this error on the screen.

     

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      abhimanyuprajapati52
      Jr Varsity I
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      Hi ​@zherring,

      The error happens because SOLine.AlternateID has a complex base attribute stack with internal dependencies. When using MergeMethod.Replace, you must completely rebuild the entire attribute declaration (PXDB, PXUIField, selector logic, etc.). If anything is missing, the framework throws the CacheAttached exception you’re seeing.

      However, AlternateID is tightly integrated with inventory cross-reference logic through AlternativeItemAttribute, and fully removing it is generally not supported because other parts of the SO logic depend on it.

      In practice, completely removing AlternativeItemAttribute is not recommended.

      A safer and more maintainable approach is:

      • Keep the base attribute
      • Create a custom attribute inheriting from AlternativeItemAttribute
      • Override only the specific behavior you need to change

      This preserves the internal framework wiring while allowing you to adjust the functionality safely.

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