SAP Message 6B098 - Differentiating characteristics: Correspondence application & has no FB

Diagnosis
No function module is assigned to correspondence application '&V1&' andcountry '&V2&' for determining the differentiating characteristics inIS-RE correspondence.

Procedure
Assign an existing function module to correspondence application '&V1&'and country '&V2&' in Customizing.
Refer to the following documentation for this:
More information about thesefunction modules