Send to SAP - SAP notification number missing.

hello,

I'm using transaction slfn with action profile AI_SDK_STANDARD the process I'm following is this one.

1. create message

2. set processing status to "Sent to SAP"

3. Under actions, select "Update SAP message"

When I try to save the message then this error appears "SAP notification number missing. Not possible to access SAP notification"

I've applied notes 1084744 (manual) and 1023598, how can I know the implementation worked?

Any advice on how to proceed?

Thanks!

Maria Valdes