Restrict the value of the company segment in accounting distributions when creating AP invoices acco

Summary:

There are 9 legal entities, each with its respective business unit, and a single ledger.

When creating an accounts payable invoice, the Company Segment value in the distribution merge field at the invoice line level displays all available values, instead of only showing the value corresponding to the selected business unit in the invoice header.

Some users need access to all business units to perform their tasks. However, this allows users to select a value that doesn't match the legal entity/business unit in the invoice header, leading to inconsistencies in the accounting entries.

BBM = 503

We have created a rule in the SLA to define the correct accounting segment value for each LE, but the "invalid distribution" error only appears when the invoice accounting entry is created, so the entry cannot be corrected.