@amobeedev: Thanks for the question. For the awareness objective, you should use either:
placements=ALL_ON_TWITTER
placements=TWITTER_PROFILE,TWITTER_TIMELINE
Note: if you try using TWITTER_SEARCH, you’ll see the following error:
{
"errors": [
{
"code": "INVALID",
"message": "LineItem with REACH objective should have [PROFILES, TIMELINES] lineItemPlacement set (or ALL_ON_TWITTER), but has only [SEARCH_RESULTS]",
"attribute": "placement"
}
],
...
}