Exchange Rate Deviates from Table Max. Tolerance.

What causes this issue?

The entered exchange rate exceeds the allowable tolerance.

System Response

A warning message is given to verify that the entered rate is correct.

How to fix this error?

Verify that the entered exchange rate is correct. If it is correct,
press enter and continue. If the rate is incorrect, correct the rate
then press enter to continue.

Error message extract from SAP system. Copyright SAP SE.