separator of 4.6C not working in 4.7 unicode

Hello,

I am using one separator in concatenate in 4.6c, it is working fine.

But when i paste the same code in 4.7 unicode, it is giving me syntax error

"SEPARATOR" must be a charactor-type data object(data type C,N,D,T or STRING). field string).

this is coding in 4.6C

data separator type x value 09.

........

concatenate itab-first separator

itab-second separator date

separator time separator itab-third

itab-fourth itab-fifth separator

itab-sixth itab-seventh

itab-eigth into objbin-line.

.................

can some one please help me.

regards.