Hello DevConnect,

I have a problem with implementing callback feature. There is an error in CCMM WebServices, text from debug log is listed below.

2016-06-01 12:11:56.570 +03:00 Nortel CIWebServices 11 2802 Major None http://ccc-aacc-mgt/ccmmwebservices/CISkillsetWs.asmx : A Soap Exception Occurred - Details : <Error xmlns="http://webservices.ci.ccmm.applications.nortel.com"><ErrorNumber>2805</ErrorNumber><ErrorMessage>Access Denied - Validation of session key failed</ErrorMessage><ErrorSource>GetSkillsetByName</ErrorSource></Error>

In topic https://www.devconnectprogram.com/forums/posts/list/95.page#p329 I've found an advice to check XAMPP version for sample client. If I don't use sample client, what should I check first?

P.S. Error appears only for one campaign and not for all calls. Please help with possible causes.