Prevent Users from submitting reconciliations unless the Less Unmatched amount is exactly Zero

Summary:

Prevent Users from submitting reconciliations unless the Less Unmatched amount is exactly Zero, regardless of the Unexplained difference is Zero.

We have a requirement to create a rule to prevent Users from submitting reconciliations unless the "Less Unmatched" amount is exactly Zero, regardless of the Unexplained difference is Zero.

I tried creating an attribute to add in the reconciliation, but this is not working.

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