NYSC Call-Up Letter Printing “Parameter Is Not Valid” Error
A lot of prospective corps members are getting “Parameter is not Valid” error while attempting to print their NYSC call-up letters for Batch A 2016 orientation programme. A lot of people have called and sent messages to ask what could be the cause of that.
I have gone to several online forums and social media platforms where many have attracted this error to network issues. I seriously doubt that since prospective corps members could log in to the NYSC portal and do other things than print call-up letters.
What Could Be The Cause of “Parameter is not Valid” Error?
The only plausible explanation for getting the “Parameter is not Valid” while trying to print your NYSC call up letter on NYSC website is that it has not been uploaded. We informed you in this post that printing of call-up letters will take place between Wednesday, 20th and  Wednesday, 27th April, 2016.
I believe that the call-up letters are being uploaded in batches and those getting the error are those whose letters have not been uploaded. You can check the NYSC portal back later.
This post is meant to just put your mind at ease that you are not the only one getting this error. There are so many people out there experiencing this too.
UPDATE: Some of those that got the error messages have now seen their letter. Just keep checking.
Still need the procedure to follow in order to print your Call up letter, click here now.
I have not made bank payment, can I still be able to see where I have been posted?
And this is based on what? Guess? You try.
Yes, it was an informed guess which was proved right eventually.
Goodmorning sir/ma,my name is Sehindemi Shola Olaolu. M a graduate of olabisi onabanjo university 2014 set.I registered for nysc,pay to the bank and print the nysc green card information but there was no call up Number on it. So I went to the surulere office and was told if no call up number on my green card it means I have being exempted because of Age. But I still want to go for Nysc and serve my father land. Please help me because now m very sad and seriously worried? God bless you ma/sir