Hi @Dietmar,

When a projection is deployed, client, server and API doc related metadata are deployed into the database. It appears metadata related to the ServerAlertLogHandling projection has been modified in the database in this case. When this happens, as far as I know, the Odata provider should ideally reload the metadata and retry. 

If the error persists, please try clearing projection and metadata caches by following the steps mentioned in below post:

Hope this helps!

Hi Charith,

thanks for your quick reply.

We will do this!!

MfG,

Dietmar