How to set Uservariable as a sequenece parameter in Sequence

[kshanthi.dsx@gmail.com]

i have a routine, which picks up the Current date value in a file. I am using Uservariable activity and setting its value by running the routine.

When I use the user Variable in the activity stage of a job to set the parameters, It only picks up that value.

I have a sequence parameter called lastrundate which has no default value. I have job actyivity parameter, which is populated using the uservariable. I want the sequence to pick up the value from uservariable in job activity, only when when I don't supply the sequence parameter.
Now, when I supply the sequence parameter as some 'X' date, it is still using the job activity parameter, which is poulated using routine.

Now my question is how to use user variavble as sequenece parameter's default value ?
Please advise. Thanks a lot.

[jwiles]

Create a routine or expression which evaluates the value of the sequence parameter. If unpopulated, return the value of the uservariable otherwise the value of the sequence parameter.

Regards,

[ray.wurlod]

You can not change a sequence parameter value once the sequence has started. Use User variables or Activity variables to populate the job parameter values.

[kshanthi.dsx@gmail.com]

Create a routine or expression which evaluates the value of the sequence parameter. If unpopulated, return the value of the uservariable otherwise the value of the sequence parameter.

Regards,

Thanks. This worked for me. I really appreciate it.