fix: check difference_posting_date

[venkat102]

Issue:
Exchange gain/loss journal posting on the current date instead of the invoice date
ref: 26926

Payment Entry:

Purchase Invoice:

Exchange Journal Before:

Exchange Journal After:

Backport needed v14 &v15

[ruthra-kumar]

@venkat102
Have you checked below configuration?

[venkat102]

@venkat102 Have you checked below configuration?

@ruthra-kumar here the advance is not maintained in the separate account, so book_advance_payments_in_separate_party_account is not enabled

also the issue is raised on v14, I think, in v14 we doesn't have this feature

[ruthra-kumar]

@venkat102

Even with this change posting date of Exchange Gain / Loss journal will still be on the reconciliation date. This is because args will always have 'difference_posting_date' set from the allocation table on Reconciliation tool.

This behavior is intentional as users wanted more control on the posting date of Exchange Gain / Loss journals. A better solution will be to replicate the config setup in v15(like this) on v14.