What is "What is on your mind? Should Not have link (http: //) is not allowed."
MeChat does not allow unsecured URL links (http: //) to be published in our business universe. Go through your document and check all added URL links by clicking the hyperlink text and selecting edit. Then change any (http: //) URLs to (https: //). Even MeChat must put a space between http: and // before we could publish this blurb.