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Communication error with external tax system (Vertex_MS0018)

Updated May 18, 2018

Communication Error ( Vertex ) in SAP SD

Problem

While entering the address details of sales organisation in defining the error appears as "Communication error with external tax system(Vertex_MS0018)"

Solution

VERTX is used for pricing and taxation purpose. Vertex is used by SAP as its own tax technology provider. Vertex is on a different system and you need a communication setup between sap and vertex. 

If you don't have a vertex which can be linked to your IDES, then you need to have the vertex disabled in your IDES to proceed. Also, check if you have the Vertex Tax Calculation procedure attached to your country.

The problem of communication also arises when the tax jurisdiction code is not filled in the G/L account line and the tax line in the case of a US export business because the tax destination partner (ship-to party) is located in a country where no tax jurisdiction code is used. However, the FI/CO interface of the R/3 System always requires a filled tax jurisdiction code. Therefore, define the corresponding value in field Tax Jurisdiction Code ' in R/3 table T001.

 


Comments

  • 01 Sep 2012 5:19 am rekha
    First goto SM59 and check whether you are connected to Vertex system by finding the external tax system in the TCP/IP connection node. Double click on the correct system and click on the Connection Test button then check whether you have assigned the tax procedure to your country in OBBG.
  • 01 Sep 2012 5:22 am rekha
    Also check if you have the Vertex Tax Calculation procedure attached to your country. Vertex is used only US/Canada jurisdiction codes.
  • 21 Jul 2017 3:18 pm Shalesh Singh

    1) In T-Code OBBG, check the assigned procedure for your country.For say, country US, make it TAXUSJ.

    2) If still error persists, check on the following path whether External Tax system is activated[ for the assigned schema(TAXUSJ in above example)]

    There should not be any entry in the line containg TAXUSJ.

  • 21 Jul 2017 3:18 pm Shalesh Singh

    I forgot to mention the path for Step 2.

    There would be an entry 'V' for the schema.Either remove the 'V" for you schema.OR use different schema for your country (use T-Code OBBG)

    Financial Accounting --> Financial Accounting Global Settings-->Tax on Sales/Purchases- ->Basic Settings-->External Tax Calculation- ->Activate External Tax Calculation

  • 21 Jul 2017 3:19 pm Romil Tripathi

    HI SAILESH,

    JUST AN EASY IMPROVEMENT TO BE FOLLOWED FOR THE SOLUTION YOU HAVE ALREADY GIVEN.

    1) When you get the vertex_ms0018 error, following is the immediate steps that you need to follow to avoid and further continue the error.

    --> First when you get through this error, cancel or quit from that screen and then next follow the below path to make a modification.

    Financial Accounting --> Financial Accounting Global Settings-->Tax on Sales/Purchases- ->Basic Settings-->External Tax Calculation- ->Activate External Tax Calculation

    After arriving to this screen, erase the following parameters

    V------TAXDOC00--------VERTEX_ms0018

    and then save it (Ctrl+S)

    Log off the session, then login to the IDES back and update the address fields by editing the co code that was created.

    Finally Save it (Ctrl+S), to successfully save the changes without any error further.


    This has worked for me in one simple step.

    Thanks for the solution Sailesh


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