If you need to manually get a direct link to one specific wall, then just click the time stamp under the message (the one that says how long this message was made), and it will go to a separate page for this post, which URL you can copy and distribute.
If you need to create this link automatically, then when you send it through the wall via the API, it should return your post_id , which you will need to create a direct link.
serg Aug 25 2018-10-15T00: 00Z
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