Brands can manage language and cultural differences during influencer content planning to ensure relevance and authenticity through the following strategies:

1. Deep Research: Brands need to conduct deep market research. This includes understanding the culture and language nuances of the target audience. The information gathered should inform the choice of influencer and the kind of content planned.

2. Using Local Influencers: One way to overcome the language and cultural barrier is to employ local influencers. These influencers would naturally have a deep understanding of the local culture and language.

3. Involving Cultural Experts: If the brand intends to use influencers from another culture, it’s wise to involve cultural experts in content planning. This avoids cultural missteps and ensures the content resonates with the audience.

4. Robust Content Review: An extensive review mechanism can help to filter out undesirable contents that can trigger cultural dissonance.

Platforms like Flinque and others provide tools to identify and analyze influencers based on audience demographics, including geographic location and language. For instance, Flinque’s advanced targeting capabilities can help brands discover local influencers in specific regions who have a deep understanding of local cultures and languages.

Moreover, other platforms might use natural language processing to comprehend and audit content in various languages, which can be beneficial in campaign planning.

In conclusion, it’s critical to do your homework and rely on local knowledge in an increasingly multicultural world. Tools like those available in Flinque and other platforms can greatly assist in this process, but the final judgment should always be made by the brand, considering their specific needs and target audience.