The previously signed employment notice only means that the employer's invitation was given a positive reply before. After resigning from the employer, it will not affect the signing of the tripartite agreement of another company, so the previously signed employment notice will not affect the three parties of another company.

When signing the employment invitation letter, workers should pay attention to understanding the basic situation of the unit and clarify the work content, work place and labor remuneration. Regarding the probation period, we should pay special attention to the payment method and time of labor remuneration.