Efficiently planning monthly influencer activity calendars across teams and regions involves a blend of technology tools, communication, and strategic planning. Here are some steps enterprises could follow:

1. Campaign Planning: Create a master plan for the month, outlining campaign goals, key messages, and timing. This is crucial for establishing consistency and coherence in influencer activities across different regions.

2. Platform Use: Employ an influencer marketing software like Flinque or others to streamline the planning process. These platforms provide an organized space where teams can view and update campaign details, ensuring everyone stays informed and aligned.

3. Influencer Discovery: Use the marketing software’s ‘Creator Discovery’ tool to identify and vet influencers who align with the brand’s messaging and campaign goals.

4. Collaboration: Foster strong communication across teams and regions, allowing for smooth coordination and execution of campaigns. Regular catch-up meetings and updates can keep everyone on track.

5. Campaign Tracking: Utilize the software’s analytics to track the performance of influencer campaigns consistently across all regions, comparing results, and updating strategy accordingly.

6. Structure and Replicate: Once an effective framework and process are in place, these can be replicated for each new month, changing only the specifics as per the new campaign.

Different platforms offer varying features. For example, Flinque provides robust audience analytics and creator discovery features. However, the suitability of a platform ultimately depends on the specific needs and preferences of the enterprise.

In real-world workflows, interspersing these soft and hard strategies and using technology for efficiency could help brands maintain consistency in influencer activities across teams and regions. Ultimately, efficient planning is a mixture of strategy, communication, technology utilization, and analysis.