FMCT Error

Dear Expert Team

While we are executing transaction FMCT for open Purchase Orders, we are gettng the below error:

Document could not be converted due to dependency

But when we click on above message, we can see Warning Messages only. There are not Errors found.

We also checked the same Purchase Order through Transaction ME22N there we are not getting any errors and we are able derive the FM Objects from derivation rules properly.

We request you let us know why this errors is triggering while doing FMCT process.

Please help us.

Thanks and Regards

PVSRG