First of all what is SAP ONE ?
I have searched in Google, but it shoes SAP BUSINESS ONE.
Anyway,
As a normal term, I can say that don't leave the job. As now you can work with business one for some time, then when you can get another chance, then you can leave the job.
I am saying this because in these market, jobs are very valuable.
And also your experience level will increase, if you wait for another job, then your knowledge and experience level will still stay there.
So my opinion, work with business one now, then after sometime you change your job.
Regards