Thanks Michael.
It works if I do not have a wildcard set (such as without "TCEMaster_*" in target dataset). When I have the wildcard defined I get an error:
File "C:/Users/sc/Desktop/test/Append_Iterator_Export_Test.py", line 25, in <module>
for fc in arcpy.ListFeatureClasses('*','All',Inputdataset):
TypeError: 'NoneType' object is not iterable
This is what I have now:
# Import arcpy module
import arcpy
arcpy.env.workspace = "C:\Users\sc\Desktop\test\test_TCE.gdb\TCEMaster"
fcs = arcpy.ListFeatureClasses("TCEMaster_*")
Inputdataset = "C:\\Users\\sc\\Desktop\\test\\Temp_test.gdb\\R0007199"
Targetdataset = "C:\Users\sc\Desktop\test\test_TCE.gdb\TCEMaster"
# Process: Append
for fc in arcpy.ListFeatureClasses('*','All',Inputdataset):
arcpy.Append_management(fc, fcs, "TEST", "", "")