Schools are likely to face severe disruption and some possible closures due to strike action by four big unions on Thursday 16 November.
Unison, Unite, the GMB and NIPSA represent thousands of non-teaching staff in education.
That includes bus drivers, school catering staff, classroom assistants, cleaners and other support workers.
The unions are taking the strike action over the failure to reform their pay and cuts to the education budget.
They said that there had been a failure to implement a long-standing review that would lead to pay increases.
Unison, Unite and GMB members employed by the Education Authority (EA) will walk out for the full day on Thursday, while NIPSA members will strike for two hours after the start of their shifts.
Unite members working for the EA are also striking on Wednesday 15 November.
