Derivation was performed but no target values were changed

Hi Experts,

I have an issue in Grants Management.

I'm trying to derive Grant, Sponsorded Program from Internal Order through GMDERIVE.

In the details of the GMDERIVE for the fields Grant and Sponsored Program I am using "Overwrite with new value"

But its not deriving while I am booking an expense in FB60.

I have activated trace in GMDERIVE.

Now I see a message in the log as below.

"Derivation was performed but no target values were changed"

Kindly guide me in this regard

Regards

Omprakash