Thanks for your help. These scripts are all internal nothing is being called from outside.

Yes, we are getting a server error 500. I have added to the case and added a snippet of code that generates the error. Thanks for your help, Bob

Looking at this closer, I found that the reason that the headers are invalid is because when the script gets called it generates a 500 server error which sends completely different headers. var url2 = nlapiResolveURL('SUITELET', 'customscript179', 'customdeploy1', true); returns the correct value…

The only error that i am seeing is SSS_INVALID_HEADER which makes me believe that some variable named has changed or something. thanks, Bob

I did open a case and talked to tech support. Because the error is occurring in one of our custom scripts he couldn't help me. It didn't seem to matter that everything worked until the upgrade. Thanks for your response. Bob

Updating everything at this point is not an option. I don't understand why some files remain with the original URL and others change each time. The inconsistency is amazing. It also gives me no solution. If the language isn't updating, why the change? What happened in the latest version that caused this to happen?

Sorry.

Thanks for your reply. The script file has not changed since 2019. I am using 1.0 scripting.

Thank you khultquist, I'll give it a shot. I appreciate your help.