You're correct—since the standard matching functionality only allows comparisons from bank transactions (FO) to bank statement fields, it won't work for your use case where the comparison needs to be reversed.
Custom Matching Logic via X++ Development
Preprocessing the Bank Statement Before Import
Manual Matching as a Last Resort
Unfortunately, without the ability to switch the comparison direction, the standard functionality does not support your requirement directly. Would you like guidance on implementing the X++ customization?
In Dynamics 365 Finance, the standard reconciliation matching setup only allows bank transaction fields to be matched to bank statement fields, preventing you from reversing the comparison. Since your requirement is to match the last six digits of the "Entry reference" (Bank Statement) with the "Payment reference" (FO Bank Transactions) for a Many-to-One match, follow the steps below to achieve this.
Since D365 Finance does not allow direct reversal of bank fields, you can manipulate the data by using "Contains" filtering and a workaround within the system.
Payment reference
Contains
Entry reference
Since the system cannot match partial values directly, preprocessing the bank statement before importing is an effective workaround.
Extract Last 6 Digits from Entry Reference (Bank Statement Transactions)
Import the Adjusted Bank Statement Data:
Run the Matching Rule with Adjusted Data:
If preprocessing data externally is not feasible, you can ask a developer to modify the standard reconciliation logic in X++ to:
📌 This requires technical development in D365 Finance.
✅ For a quick solution, preprocess the data before import. ✅ For a semi-automated approach, modify matching rules with "Contains." ✅ For full automation, consider a customization.
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