3508458 - "This external code [xxxxxx] already exists. Try another" error happen when importing business rule in Configuration Transport Center

When importing business rule in target instance, validation failed with error like "This external code [xxxxxx] already exists. Try another".

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SAP SuccessFactors HCM Suite b2105 and above

1. Create a Business Rule in Source instance with ID "sap_test_same_ID_liu".

2. Create a Business Rule in Target instance with ID "SAP_TEST_SAME_ID_LIU".

3. Generate a new bundle in Source instance with Business Rule "sap_test_same_ID_liu" in Configuration Transport Center.

4. Transport that new bundle to Target instance via pre-define pair.

5. Login Target instance and navigate to Configuration Transport Center.

6. When importing the transported bundle, a validation error happened.

7. Download the log file and find the error message "Errors encountered for key [Rule ID : sap_test_same_ID_liu, Start Date : 01/01/1900 ]. Errors: [ {This external code [SAP_TEST_SAME_ID_LIU] already exists. Try another.}]".

The error occurred because the Rule ID entity is non-case-sensitive. Therefore, two Rule IDs with different casing cannot exist in the same instance at the same time for a Business Rule.

During the transportation of entities via the Configuration Transport Center, the system operates in full purge mode. This means that it matches all the entities in a case-sensitive manner, as some entities in the Configuration Transport Center are case-sensitive.

In this case, the tool is unable to find the Rule ID "sap_test_same_ID_liu" in the Target instance, so it creates a new Rule ID.
However, during the creation of the new Rule ID, it validates again in a non-case-sensitive mode. Since the Rule ID "SAP_TEST_SAME_ID_LIU" already exists in the Target instance, the validation process throws an error.

Go to the Target instance and delete the Rule ID as "SAP_TEST_SAME_ID_LIU". After that, it will be possible to transport that rule to Target instance.

3047688 - Configuration Transport Center - SAP SuccessFactors

Configuration Transport Center, validation error, This external code already exists. Try another, case-sensitive, business rule, full purge , KBA , LOD-SF-PLT-CGC , Configuration Center , Problem