How can we modify the record in the current FY to reflect correct accounting in the prior year?

Summary:

Accounts Receivable transactions were submitted with the incorrect fund and create accounting was run in final. These transactions were made in a prior fiscal year. How do we correct this?

Content (required):

Accounts Receivable transactions were submitted with the incorrect fund and create accounting was run in final. This error resulted in intercompany transactions. Furthermore, these transactions were made in a prior fiscal year.

We noticed an "override" account button which seemed promising and also a bit concerning but this did not yield the correct results since the dates are adjusted in the wrong period/fiscal year.

We need to modify the receivables record in the current fiscal year to reflect the correct accounting on a record that has already been posted to the GL in the prior fiscal year? Any ideas.