Can a Project Header Flexfield be brought into GL?

Summary:

Client has a requirement that the Employee ID from a Projects expenditure item needs to be carried over to the JE in GL. For context, we have an integration from Concur to Projects, and then the accounting gets posted to GL. The Employee ID does not seem to be carried over, so we are trying to determine/test if a DFF can be used, or if there is any other way?

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