Multiple COA structure mapping at LDG level

Summary: We are configuring the cost key flex field for payroll costing at legislative data group level for two different business lines which are Retail  & Hospitality. However payroll cost key flex fields can be configured under different LDG but our business requirement is, two different business line configuration are almost similar and configured under one LDG only.

In this scenario, we can maintain the Chart of accounts segment for Retail under payroll cost allocation flex field but for hospitality we cant use the same Chart of accounts segments. How can it be achieved with this limitation?

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