SAP Message TT328 - R/2 module is only possible in an R/2 test case (type = R)

Diagnosis
R/2 test modules (type R) can not be called in an R/3 test procedure.

System Response
In CATT, you can generally execute several test procedures, which mayrun in both R/2 and R/3, in one procedure. Each test proceduredetermines the system in which it runs. The attribute 'Type = R'assigns them to R/2, otherwise to R/3. The modules contained should beof the same type, although certain exceptions, in which R/3 modulesalso run in an R/2 procedure, but not vice versa, are allowed.

Procedure
Check the run sequence, using the correct type flags.