Are Funding Source Number and Types Supported in Procurement and Payables SLA?

Summary:

We are implementing Oracle Grants/Projects. The client would like to setup SLA based on the funding sources (external, internal organizations and other). In Project Costing, I'm able to setup SLA (e.g., miscellaneous costs) based on the funding source number and type. However, when we setup the Procurement and Payables SLA, we receive validation errors on the subledger journal entry rule sets. When we remove the funding source from the account rules, the subledger journal entry rule sets are updated to an active status.

Content (required):

What is the intended functionality? Are funding sources supported in Procurement and Payables?