How To Fix AC606 - Company code &1 is not in test mode

SAP Error Message - Details

• Message type: E = Error

• Message class: AC - Error messages from Asset Customizing

• Message number: 606

• Message text: Company code &1 is not in test mode

What causes this issue?

You want to reset posted depreciation in company code &V1&. However,
this company code is not in test mode.
Even if the status is 'asset data transfer not yet completed,' you
still cannot reset posted depreciation in the company code!

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

You cannot reset posted depreciation in company code &V1& under these
circumstances.
You could possibly change the status of company code &V1& to "test
company code."

Error message extract from SAP system. Copyright SAP SE.