Initialize that val_TEST variable.
val_TEST ="" re_parameter = REQUEST (“ASSOCLP_PARVALUE”, “TestPAR”, nameind_TEST, type_TEST, flag_TEST, dim1_TEST, dim2_TEST, val_TEST) labelText = val_TEST
If you don’t initialize you will always get a warning. Sometimes it doesn’t matter, but with Requests it often does. If variables aren’t initialized, they are assumed to be numbers, and that variable needs to be a string.