Yir pal will need to be earning at least �90 for the one day job to satisfy the earnings rule to qualify for SMP in that job.
She also needs to have been employed in that job for twenty-six weeks up to and including the fifteenth week, (the Qualifying Week[QW]) before the wee one is due (still keeping up?)
If she satisfies those rules, the employer must pay the SMP, it doesn�t matter if they end the contract after that QW, it must be paid.
If she doesn�t qualify for SMP in that second job, she will be allowed to work only ten days in it without the SMP in the other job being affected as she is working for the same employer.
As soon as she�s done ten days, any work done after that will mean a whole week�s SMP in the other job will be lost.