Error assigning autom. as message processor in 'AI_SDK_ACTUAL_PROCESSOR'

Hi,

We have an error with the action 'AI_SDK_ACTUAL_PROCESSOR' since SP17 upgrade.

When the message processor is empty or it is different with the current processor the system asks:

Do you want to assign yourself to this message as 'Message Processor'?

If we confirm appears the error:

"The document could not be saved"

This Event '': Function module 'AI_SDK_ACTUAL_PROCESSOR' caused a defect code.

Your help will be much appreciated.

Regards,

Roberto