SAML Error ||| Account not provisioned

Hi Community

i have big Problems integrating Nextcloud with VMware Identy Manager.

Here is my Nextcloud Configuration

I have only the Standard local User Backend enabled in Nextcloud.
I created the Users (same uid and email) like on the my idp

i allways getting these Error Message:

{"reqId":"6CbZI5tJSnLPNJ1clQ5z","level":4,"time":"2019-08-30T08:29:45+00:00","remoteAddr":"xyz","user":"--","app":"user_saml","method":"POST","url":"\/index.php\/apps\/user_saml\/saml\/acs","message":"IDP parameter for the UID () not found. Possible parameters are: []","userAgent":"Mozilla\/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/76.0.3809.100 Safari\/537.36","version":""}

Hola Tengo el mismo problema haz podido avanzar en algo?