Webdispatcher - Customer Error Page

Hi experts,

I would like to customize my own error pages on SAP webdispatcher.

Therefore I did maintain the parameter icm/HTTP/error_templ_path with the directory, where the .html files are.

I've created just own page, ICMERR-EDEFAULT.html.

I did also restart the webdispatcher.

However, I still get the SAP error pages and not my custom one.

We are using 7.40.

Thx for any help.