Our company is on 4-5-4 calendar, where financial year ends in September. We want to change the fiscal year end to December from September in SAP. Fiscal year 2016 started in 09/2015 and would have ended in 09/2016. Because of this change, the October, November and December months will be transition periods in 2016.
In order to achieve this in SAP, I am using special periods in 2016 (FY 2016 will have 12 periods and 3 special periods) and also use substitution rule to define the posting period for special periods at document header level based on the posting date. In OB29, the period 12 will be set from Sep through December (see screenshot OB29).
By using the posting date, the posting periods will be substituted.
Posting date 10/1 – 10/28 = Period 13
Posting date 10/29 – 12/2 = Period 14
Posting date 12/3 – 12/30 = Period 15
Has anyone used this approach for extended fiscal year?