2026 R1 upgrade from 2024 R1: CCProcessingCenterMaint base compilation errors

Question

I’m getting a build error in the UpdateExpirationDate() function:

public class KBCCProcessingCenterMaintExt : PXGraphExtension<CCProcessingCenterMaint>
{
[PXOverride]
public PXAction<CCProcessingCenter> updateExpirationDate;

public static bool IsActive() => PXAccess.FeatureInstalled<PX.Objects.CS.FeaturesSet.integratedCardProcessing>();

[PXUIField(DisplayName = "Update Expiration Dates", MapEnableRights = PXCacheRights.Select, MapViewRights = PXCacheRights.Select)]
[PXButton]
public virtual IEnumerable UpdateExpirationDate(PXAdapter adapter)
{
if (Base.ProcessingCenter.Current != null && Base.ProcessingCenter.Current.ProcessingTypeName == typeof(KBTokenizedProcessing).FullName)
{
throw new PXException(KBMessages.FeatNotSupported);
}

return Base.UpdateExpirationDate(adapter);
}

The error is: 'CCProcessingCenterMaint' does not contain a definition for 'UpdateExpirationDate' and no accessible extension method 'UpdateExpirationDate' accepting a first argument of type 'CCProcessingCenterMaint' could be found (are you missing a using directive or an assembly reference?)

I looked in release notes here but I couldn’t find anything regarding this change to PX.Objects:

AcumaticaERP_2026R1_ReleaseNotes_for_Developers.pdf

Has anyone come across this issue or can someone point me in the right direction

Naveen Boga · Answer

​@bpgraves I have not checked this, but can you please try this and verify.[PXOverride]public virtual IEnumerable UpdateExpirationDate(    PXAdapter adapter,     Func<PXAdapter, IEnumerable> baseMethod){    if (Base.ProcessingCenter.Current != null &&         Base.ProcessingCenter.Current.ProcessingTypeName ==         typeof(KBTokenizedProcessing).FullName)    {        throw new PXException(KBMessages.FeatNotSupported);    }    return baseMethod(adapter);   }

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