Existence check failed; function &1 does not exist in source system.

What causes this issue?

A required function is missing in the source system. Therefore the
existence check <ZH>cannot</> be executed in the <LS>Central Finance</>
system.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Please check the prerequisites for setting up the source system for
<LS>Central Finance</>.

Error message extract from SAP system. Copyright SAP SE.