I want to use the News feed in SharePoint 2013.I have added the news feed to the site.
But while posting,it allows only 512 characters.I want to increase the limit here and user can able to add more than 512 characters.
Please suggest your ideas.
According to your post, my understanding is that you want to add more than 512 characters in Newsfeed.
By design, the maximum length of a post is 512 characters on a News Feed. It is to avoid split posts to the newsfeed based on length limits.
Per my knowledge, there is no out of the box way to accomplish it. And, the maximum length is using the hard code to limit by SharePoint design.
As a workaround, if you want to post more than 512 characters, you can consider to create a discussion, other medium for capturing/sharing, or custom a new Site Feed web part instead of it.
For more information, you can refer to the articles below:
To customize a custom site feed web part, the following articles would be a good beginning.
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