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External Tax Determination

Hi experts,

I am having issues trying to add External Taxes to my Invoicing Documents

I have configured my BAC. I have a Tax Determination Tree defined as well. I can't find how to do this from the ABSL code either.

However, I haven't been able to add my Custom Tax to the documents. No matter the combination of values I add, I never get the checkbox "External Tax Rate Determination" as CHECKED.

Does anybody have a sample of adding external taxes to a document?

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  • Hi Deena.Let me show you.

    This is what I need to achieve: to be ableto update the taxes (add taxes, update rates, and so on) in modeExternal Tax Rate Determination. All of this elements come from an external source, I need to be able to update them all.

    In order to do this, we've enable the External Tax Determination as shown in

    To update the rate, I've tries these options:

    1) Tax Desition Tree: I've created a very simple tax desition tree from PDI:

    I've deployed this tree:

    But, when I created a sales document,I don't see that my calculation has performed:

    And,of course, I still see the Automatic Tax Determination check as Checked but no the "External Tax Rate":

    2) The second option I followed was to add my code to the BeforeSave event in the Sales Document but I was not able to update any rate.

    Is there any configuration I might be missing?

    Thanks in advance,

    zerle.png (133.2 kB)
  • Hi Hector,

    If its an issue in Supplier invoice, then

    May i know what you mean by BAC

    kindly share us screen shot of where you see checkbox "External Tax Rate Determination" as not Checked.

    Thank you


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