To access the Chatter Settings page in Setup, enter "Chatter" in the Quick Find box and select '''Chatter Settings'''. Make sure that '''Enable''' is selected.
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# On the Salesforce server, go to '''Setup'''.
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# Go to '''Chatter Settings''' and enable the following parameters:
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#* '''Enable''': Required for chatter in general.
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#* '''Rich Text Posts''': Required for chatter in Resco mobile apps.
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#* (Optional) '''Emoticons in Feed''': If you want to enable emoticons.
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# Go to '''Feature Settings > Chatter > Feed Tracking''' and enable feed tracking for all entities for which you want to have chatter.