The UN performance appraisal system (ePAS) and probation period explained

Getting the offer letter is not the finish line. Nearly every UN organization puts a new fixed-term hire through a defined probationary period, and every year after that your post, step increases and contract renewal run through a formal performance appraisal cycle — commonly called ePAS in the UN Secretariat and known by other names elsewhere in the system. This guide covers how the appraisal cycle actually works, what probation means in practice, and why both matter to you as a candidate, not just as a serving staff member.

As with contract types and pay, the exact tool name, rating labels and timing are set by each organization's own administrative instructions and are periodically revised — what follows is the structure common across the UN system, not a single universal policy.

What ePAS actually is

ePAS (electronic Performance Appraisal System) is the UN Secretariat's online tool for documenting a staff member's annual work plan, tracking progress, and recording a formal rating at the end of the cycle. It is not a single form filled in once a year — it is a running record that a supervisor and staff member both maintain, and it becomes the documentary basis for step increases, contract renewal, promotion boards and, in the Secretariat's competency-based recruitment process, evidence of how a candidate has actually performed against the same competencies assessed at interview. Funds, programmes and specialized agencies each run their own equivalent system under their own name and templates, but the underlying logic — plan, mid-cycle check-in, end-of-cycle rating — is consistent across the common system.

The annual cycle: plan, mid-point, rating

A typical cycle runs for one calendar or reporting year and has three checkpoints. At the start, the supervisor and staff member agree a work plan: a small number of concrete objectives tied to the office's own workplan, plus the core and managerial competencies expected at the staff member's level. Partway through, a mid-point review checks progress, flags any objectives that have shifted, and — importantly — is the point at which a supervisor is expected to flag emerging performance concerns in writing rather than saving them for the final rating. At the end of the cycle, both sides document actual performance against the plan and the supervisor records a formal rating, which the staff member can comment on and, in most systems, escalate to a second reviewer if they disagree with it.

None of this is meant to be a surprise. A cycle that skips the mid-point check-in, or where a "does not meet expectations" rating appears for the first time at year-end with no earlier documented concern, is a procedural weakness a staff member can raise — the whole design assumes ongoing feedback, not an annual verdict out of nowhere.

The rating scale

Most UN performance systems use a small number of overall rating categories, typically along the lines of: exceeds expectations, successfully meets expectations, partially meets expectations, and does not meet expectations — with the exact wording varying by organization. The large majority of staff land in the middle "successfully meets" band in any given cycle; a top rating is meant to reflect genuinely exceptional performance, not a routine year of solid work, and a below-standard rating is meant to trigger a formal response rather than sit quietly in a file.

Competencies and objectives are both assessed

The rating is not based on task completion alone. Alongside concrete objectives (deliverables, projects, targets), the appraisal assesses a set of core competencies — communication, teamwork, client orientation, and others common across the system — plus managerial competencies for anyone who supervises staff. This is the same competency framework behind competency-based interviews at recruitment stage, which is why interview preparation and on-the-job performance are not separate skill sets: the behaviours a panel probes for at interview are the same ones a supervisor is documenting evidence for a year later.

The probation period on a first fixed-term appointment

Separately from the annual appraisal cycle, a staff member's first fixed-term appointment typically carries a defined probationary period — commonly around one year, though the exact length and any extension provisions are set by each organization's staff rules. Probation exists so both sides can confirm the appointment is working before it converts to unconditional status: the organization confirms the hire is performing at the required level, and the staff member confirms the post and duty station are workable in practice.

During probation, performance is generally documented more closely — an early check-in in addition to the standard mid-point review is common — because the organization needs a documented basis to confirm the appointment, extend probation, or, in a minority of cases, discontinue it before it becomes harder to end. A clean, well-documented probation record with no surprises at either checkpoint is the strongest predictor of a smooth confirmation.

What happens if a rating comes in below standard

A below-standard rating is not meant to end a career on the spot. The standard response is a formal performance improvement plan: specific, time-bound objectives, closer supervision, and a defined re-assessment point, giving the staff member a documented opportunity to bring performance back to standard. Only if performance remains below standard after that structured process does it typically become a basis for non-renewal or, in rarer cases, separation — and a staff member who believes a rating was unfair generally has a right to rebut it through the organization's internal rebuttal or appeal process rather than having no recourse at all.

Why this matters before you have the job

Two practical takeaways for anyone applying rather than already serving. First, ask about the appraisal process and how probation has actually gone for recent hires in similar posts when you're evaluating an offer — a team with a documented, consistent cycle is a healthier signal than one where staff describe ratings as arbitrary. Second, prepare for competency interviews with the appraisal cycle in mind: the competencies a panel scores you on at the interview stage are the same ones your first-year supervisor will be rating you against, so genuine, well-evidenced examples serve you twice — once to get the offer, and again to clear probation cleanly.

See how appraisal outcomes connect to contract renewal and conversion, or browse current vacancies across the UN system to see the competencies and requirements organizations are recruiting against right now.