How To Fix CA_TTE619 - Reverse mapping not possible due to ambiguous external value


CA_TTE619 - Overview

  • Message type: E = Error

  • Message class: CA_TTE - TTE Messages

  • Message number: 619

  • Message text: Reverse mapping not possible due to ambiguous external value

  • Show details Hide details
  • What causes this issue?

    The system always checks if a business partner tax group can be mapped
    based on an external object assignment. If 2 or more external
    assignments exists for 1 internal value, a error message is written to
    the TTE trace log.

    System Response

    Processing terminated.

    How to fix this error?

    If an external tax group should be mapped, proceed as follows:
    Call activity: <DS:SIMG.SIMGMAP_PARTNER>Assign Objects From External
    Systems</> (Cross-Application Components -> Transaction Tax Engine ->
    Utilities -> Assign Objects From External Systems)
    Select the relevant system: systemID1 &V3& systemID2 &V4&, country and
    tax type &V2&
    Check that the TTE internal value &V1& has a unique relation with the
    external value.
    Save your entries.
    Refresh customizing immediately with the activity
    <DS:SIMG.SIMG_REFRESH>Immediate Customizing Refresh</>.

    The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

    Procedure for System Administrators


    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message CA_TTE619 - Reverse mapping not possible due to ambiguous external value ?
    The SAP error message CA_TTE619, which states "Reverse mapping not possible due to ambiguous external value," typically occurs in the context of data mapping or transformation processes, particularly when dealing with external values that cannot be uniquely identified or mapped back to their original internal representations.
    
    Cause: Ambiguous External Values: The error arises when the system encounters an external value that could correspond to multiple internal values. This ambiguity prevents the system from determining which internal value should be used for the reverse mapping. Data Quality Issues: Inconsistent or poorly defined external data can lead to situations where the same external value is associated with different internal values.
    Configuration Issues: Incorrect or incomplete configuration of the mapping rules or transformation logic can also lead to this error.
    Solution: Review Mapping Configuration: Check the mapping configuration to ensure that each external value is uniquely mapped to an internal value. If there are multiple mappings for the same

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