How to add the Project planning details for a resource with the REST API or ERP adapter

Summary: We are developing a customer extension(using VBCS) for Project planning module.

After adding a task, we have to add the Resource under that task. We are capturing the monthly planned effort for the resource in the customer screen, but unable to find the REST API or ERP adapter (OIC) to push the monthly planning data to SaaS.

Can some one please help us figure out which REST API we need to use to update the Resource planning data in SaaS.

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