Restrict FI park & Post workflow WS10000051 for Document Type

Hello Experts,

We have configured workflow WS10000051 for FI document park & post. Workflow is working fine.

Now as per new requirement, FI team want to restrict the workflow triggering for few document types only.

I tried the SWB_COND to put the condition, but as FIPP business object don't have document type available, I can't put condition from there.

From SWEC, I am not able to get the change document type for business Object FIPP.

Please help me out for any other way  for restricting the trigger of Workflow WS10000051, business object FIPP.

Thanks

Tripurari Rai