XI30 File Adapter - check for (NOT) incoming file

Hi!

We use XI30 SPS15 and have the following challenge: We expect every

week on a certain day a file coming from a customer. So far so good.

But now we want to check whether such a file has really come within a

given period of time and if not, we want to take some action (e.g.

trigger Alert or s.th. like that).

Business Background is: If the customer does not send the file or he

sends it too late, we cannot bill him in time, thus increasing our DSO.

Is there any mechanism within the XI to check things like these and to

trigger an alert? I've read the File Adapter Documentation as well as

the BPM documentation but I could not find any hint.

Any help would be great. Thanx!

Regards,

Volker kolberg