You are running one query in the SFAPI CompoundEmployee using the WHERE condition of just one employee and this employee is not being returned in the response.
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Find below one example of this query:
person_id_external = ('Cgrante')
The API is returning always with zero results, according example below:
<queryResponse xmlns="urn:sfobject.sfapi.successfactors.com" xmlns:ns2="urn:fault.sfapi.successfactors.com">
SuccessFactors SFAPI CompoundEmployee
Please check if the Person ID being stored in the "Biographical Information" matches with the value passed in the parameter person_id_external (WHERE condition).
This field is case sensitive and any difference will impact.
In my example after changing from ('Cgrante') to ('cgrante'), the SFAPI CompoundEmployee it worked.
Employee not returned, not appearing, not found, response cannot see, API, SFAPI CompoundEmployee, CE, zero results, numResults, case sensitive, lower caps, lower case , KBA , LOD-SF-INT-CE , Compound Employee API , LOD-SF-INT , Integrations , Problem