Managing contracts, payments, and tracking influencer deliverables can indeed create friction between brands and influencers. However, there are various tools on the market that can help streamline these processes:

1. AspireIQ: This influencer marketing platform comes with comprehensive project management tools that allow brands to manage contracts, track influencer deliverables, and process payments. Its collaboration workflow can be customized to suit different campaign needs.

2. Traackr: Another effective tool is Traackr, which offers robust project management and campaign tracking features.

3. Flinque: Flinque also has a robust workflow system that allows brands to manage contracts and payments, while tracking deliverable due dates. Its system also keeps records of communication with influencers for future reference.

Besides these tools, there are other useful features like in-platform messaging, intuitive content approval, milestone setting, and real-time analytics that these platforms offer.

Please remember, the right tool will heavily depend on specific needs of your team, size and scale of your influencer campaigns, budget considerations, and desired level of automation in the workflow.

Lastly, it’s important to have a well-documented and agreed-upon process with influencers regarding contracts, deliverables, and payments to minimize potential misunderstandings or disagreements. Some platforms even provide templates or draft contracts that can be customized according to campaign needs.