Hello Clemens,

Thank you for your question. 

From the time the data connection import was set up, has there been any change to the structure of the ‘EINE’ table ? If this is the case, you will need to synchronize the data connection to allow for a successful update. You can find the instructions in the final section of this documentation : https://docs.celonis.com/en/transfer-data-between-data-pools.html (Same as the documentation you have linked in the question). 

If this is not the case, please let me know and we can explore other possible causes. 

Thank you.

Hi Lea,

I do not know, if there were any changes. However, I have already synchronized the tables of this data connection (more than once to be sure that the tables are synchronous).

Best,

Clemens