Function module for Invoicing document check of clarification function (FI-CA-INV)

[ai_takahashi]

Hello Convergent invoicing experts,

I'm struggling to examine the CI invoicing document check logic, but cannot reach to the right information.

Could someone kindly share the information on the following questions about the amount check of clarification function?

1. Is there any sample function module source code provided for invoicing amount limit check from SAP?
2. Does the invoicing document check function work for " collective bill " invoicing process also?

I would appreciate if you gave me some feedback. Thank you !