The phrase "a collaborative campaign" is correct and usable in written English.
You can use it when referring to a campaign that involves cooperation and joint efforts among multiple parties or organizations.
Example: "The nonprofit organization launched a collaborative campaign to raise awareness about climate change, partnering with local businesses and schools."
Alternatives: "joint initiative" or "cooperative effort".
What started out as independent artists wishing to express themselves has grown into a collaborative campaign of sorts, with individuals and cultural organizations banding together to promote Palestinian arts.
A conference in Washington, at which new video testimony will be shown from the relatives of victims, is the first step in a collaborative campaign to challenge Barack Obama's claim in February that the strikes, aimed at terror suspects, were kept on a "tight leash" and had not inflicted huge civilian casualties.
Project U-Turn is a collaborative campaign to build understanding of Philadelphia's dropout crisis and implement strategies to resolve it.
Activities and results for children As part of a collaborative campaign between UNICEF and the Indian Government, Indian cricket legend Sachin Tendulkar appeared in a public service announcement urging children to lather up in support of Global Handwashing Day.
The recent 'Groupon for Children' campaign, a collaborative effort between UNICEF and Groupon Malaysia, is a spot-on illustration of this.
The campaign is a collaborative effort among the CVS employees who oversee ExtraCare and agencies that include Bravo, iCrossing, Matter Communications and Poptent.
The Campaign is a collaborative effort by foundations, nonprofit partners, business leaders, government agencies, states and communities across the nation to ensure that more children in low-income families succeed in school and graduate prepared for college, a career and active citizenship.
The Cooperative Indian Ocean experiment on intraseasonal variability in the year 2011 and the joint project of Dynamics of the Madden–Julian Oscillation (CINDY-DYNAMO 2011) are part of an international collaborative campaign to collect in situ observations in the tropics (Yoneyama et al. 2013; Zhang et al. 2013).
In 2004, she created the hospital's annual Thanks and Giving program, an unprecedented collaborative campaign that brings together more than 60 of the nation's leading corporations that has so far raised $500 million dollars from holiday shoppers everywhere.
