GL Accounting Calendar Period change

Summary: Our Configurations are completed for HCM, SCM and FIN. During the data conversion in GL we found that the Period name in the Accounting Calendar is wrongly defined. We want to change the Period name in the accounting calendar. We have converted data into GL but not yet posted them.

Please advise, is there a way, we can modify the Period name of Accounting Calendar? If yes, how can we change it? Willl there be any impact on other configuration as we have Subledgers who will be using the same calenar.

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