I cannot explain scenarios in examples given by someone who created a document in a different website.
If you just enter ATC AEC ECO in Google then you find hits from linkedIn where people posted they implemented SAP for those companies.
One of them probably developed a document for his WM setup which can be found at slidshare and other websites
It is unfortunately so with many documents, even here in SCN, that people post screenshots over screenshots as document but miss to explain the scenario and the preconditions.
So you would need to find the original web site and post your comment there, or find the person who had created this document and ask him directly by mail.
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