Fmf0 Error: different fiscal years

Dear experts,

When I run FMF0, I get an error:

Status: E

Message text: Invoice and payment in different years.

In short:

The invoice baseline date in the middle of December 2020, payment terms are 60 days, what brings it to a supposed payment at 2021.

However, the financial department has decided to pay it on 2020. (They have done F110 Tcode.)

On 31.12.2020 I tried to run FMF0 with: Entry Date & Fm Posting Date of 31.12.2020 and Fiscal year 2020.

Then I got that error message. (Invoice and payment in different years.)

Is this a bug?

Any idea how to solve it?

I don't want to change the bline date .(15.12.2020)

However only when I change it to enough early date (e.g. 1.10.2020) I can use the FMF0 in otder to create 0250 (Btart).

Thanks,

Noy.