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ETAG Mismatch - Previously Posted Solutions Not Working

Hello, for give my frustration.  I have been working on this issue for days now and the solutions don't seem to be working.


Two solution references seem to be Article 1 and Article 2.


I think I am doing what both of these articles show the fix to be.  However, results are still an ETAG error.


DataSource is a SharePoint List.

This is a Custom Canvas App.

List Screen (Using a Data Table Control):

        FormState: "View",
        SelectedNCR: DataTableNCR.Selected


Save Button.  First save is good.  Second results in ETAG.

UpdateContext({SelectedNCR: LookUp(B20, ID = SelectedNCR.ID)});

    LookUp(B20, ID = SelectedNCR.ID),
        Responsibility: Dropdown_Responsibility.Selected,
        ResponsibilityText: Dropdown_Responsibility.Selected.Value


A reference IDs:2019-08-21_14-47-26.png


Based on the referenced post and this post, the solution seems to be refreshing the data source before updating.  Yet I am doing this and it is still producing the ETAG error.


Does anyone have any suggestions or see what I am doing wrong compared to the referenced solutions?


Thank you in advance for any recommendations.


Super User
Super User

Is B20 a data source or a collection and if it is a collection how is it set?

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B20 is a SharePoint List datasource.  It is bound to the Data Table.

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