How do I find the tables used on Gl Accounting Calendar form?

Hi there!

When try to Save Period "SEP-19" after Adding it on the Accounting Calendar form we receive error => "A period with this period type, period year and period number already exists".

Below tables do not show any data on SEP-2019:

GL_PERIOD_STATUSES, GL_PERIODS, gl_date_period_map

We are trying to find what is preventing us to ADD the Period, that is which table has this SEP-2019.  If we can find that out then we will Delete it.

All assistance is highly appreciated.

Thanks,

Define