The National Youth Service Corps (NYSC) says only graduates with complete documents will be mobilised by the scheme.
The Director of Press and Public Relations, Mrs Adenike Adeyemi, gave the hint in an interview with the News Agency of Nigeria (NAN).
The spokesperson commented on claims of rejection of graduates from some African institutions.
She said affected graduates were not totally rejected for mobilisation as the process had not been concluded yet.
The Director disclosed that many of those who attended foreign institutions had missing documents, adding that NYSC would have to get in touch with the schools.
Adeyemi said graduates must provide records showing evidence of graduation as prospective corps members, with results from their schools.
“The schools have been communicated about the documents and the prospective corps members have been communicated too.
“We have told them that they cannot be mobilised until their schools produce the documents required, including their admission, graduation and other things needed.
“Once the schools are able to provide evidence of what we are talking about and the records are set straight, then we will take the next step”, Adeyemi added