A missing exchange rate means the report cannot convert some amounts for the selected dates.
1. Read the warning
Open the report and note the affected currency, date, and source record listed in its warning.
2. Check the source record
Open that record and review its Accounting currency and exchange-rate choices. Confirm the actual conversion with your accountant.
3. Correct the permitted value
Enter the appropriate rate only through the supported record flow. A paid or locked document may restrict changes; do not invent a rate to remove the warning.
4. Reload the report
Use the same business, dates, and currency and check whether the warning and totals have updated.