3625333 - OData API Upser Error: Cannot invoke "java.util.Map.size()" because "<parameter1>" is null - Recruiting Management

500 internal server error occurs when attempting to batch upsert job application records.

• Error writing the data:
  {"requestUri":"/odata/v2/upsert","statusCode":500,"statusText":"","headers":[],"body":"{\n\"error\" : {\n\"code\" : \"ServerErrorException\", \"message\" : {\n\"lang\" : \"en-US\", \"value\" : \"Cannot invoke \\\"java.util.Map.size()\\\" because \\\"<parameter1>\\\" is null\"\n}\n}\n}"}
• Cannot invoke "com.successfactors.rcmapplication.bean.JobApplication.getCustomizedStatusId()" because "oldJobApp" is null

SAP SuccessFactors Recruiting Management

RCM, API, CPI, Integration, Error, 500, internal server error, ServerErrorException, parameter1, java.util.Map.size, Job Application, update, upsert, BatchApply, getCustomizedStatusId, oldJobApp, null  , KBA , LOD-SF-RCM-API , Webservices & APIs , LOD-SF-RCM-INT , Integration Center & Intelligent Services , LOD-SF-RCM-APP , Applicants and Job Applications , Problem