Dynamic action for IT0016 - during Hiring

Dear All,

Requirement is like:

While Hiring an employee, if infotype 0016-Contract Element; field PRBZT is blank then Infotype 0019-Monitoring of Task should be default task type 02.

I have return a dynamic action as shown below, but cannot get the correct result. Can you help me.

0016

PRBZT

04

200

***Dynamic action for defaulting Task Type-Start

0016

PRBZT

04

201

P

T001P-MOLGA='28'

0016

PRBZT

04

202

P

PSPAR-MASSN='01'

0016

PRBZT

04

203

P

P0016-PRBZT=' '

0016

PRBZT

04

204

I

INS,0019,02

0016

PRBZT

04

205

W

INS,P0019-TMART='02'

0016

PRBZT

04

206

W

***Dynamic action for defaulting Task Type-end

Thanks and Regards,

Sandeep