The fifth annual 'State of Creativity' report finds that more than half of brands describe their ability to develop high-quality insights as poor or very poor.
Media reports indicate that Interpublic Group is being pressured to spend more with X, or its Omnicom deal could face resistance from owner and Donald Trump ally Elon Musk.
The abrupt announcement comes just days after the organisation and several advertisers, including Unilever and Mars, were accused by X of illegally withholding spending from the social media platform.