A guide to sizing training for a five-week campaign

 

In a campaign contract, training does not compete with the budget. It competes with the calendar. And that is a calculation you can do on one sheet of paper before hiring anyone.

A retail chain brings in 60 people on 10 November to cover Black Friday and Christmas. The contracts end on 15 December: five weeks, twenty-five working days. The training manager proposes a six-hour path covering the regulatory block, till operations and the returns protocol. Management gives the usual answer: six hours across sixty people is three hundred and sixty hours of staff time off the floor, and the campaign only lasts five weeks.

Both are right, which is why the conversation repeats every year without resolving. What is missing is not a better argument. It is the arithmetic.

 

The calculation almost nobody does

 

Anyone starting a new role takes time to perform like everyone else. Call it ramp, curve or adaptation period. That time exists with training and without it; what changes is its length. And in a short contract, the length of the ramp decides what fraction of the contract is productive.

The arithmetic is elementary. If the ramp lasts ten working days, a five-week contract has fifteen days at full performance. A two-week contract has none.

 

 

It is worth saying what this table is and what it is not. It is not a statistic: it is a model with two assumptions you need to replace with your own (five working days per week and a ten-day ramp). If your ramp is four days, the whole table changes. The value is not in the specific numbers, it is in forcing you to write down a figure almost nobody writes down: how many days of that contract pass before the person performs.

We call those days remaining after the ramp the Training Payback Window: the only stretch of the contract in which what you invested in preparing that person returns anything.

 

The Training Payback Window is the difference between the length of the contract and the length of the ramp. When that difference approaches zero, it is not that training is expensive: it is that it never gets paid back.

 

Seen that way, management's question was badly framed. It is not how many hours of training fit into five weeks. It is how many ramp days you can afford within twenty-five.

And the lever appears on its own. In that five-week contract, cutting the ramp from ten days to five does not save five days of training: it turns fifteen productive days into twenty. A third more output on the same payroll, the same people and the same calendar.

 

Why cutting training does not fix the calculation

 

The instinctive reaction to a narrow window is to compress: strip content until it fits. There are two floors that prevent going below a certain point.

The first is legal. Article 19 of Spain's Law 31/1995 requires employers to guarantee "theoretical and practical training, sufficient and appropriate" in prevention "at the time of hiring", and adds that it must be "focused specifically on the job position or function of each worker"¹. That block is not negotiable by contract length: someone spending five weeks on a loading dock needs exactly the same safety training as someone spending five years. If you are looking for somewhere to cut, that is not the place, and it is also the one that leaves a documentary trail when something goes wrong.

The second floor is operational and less obvious: during a campaign, mistakes cost more than in normal season. A return processed wrongly on a Tuesday in February gets fixed calmly. The same return processed wrongly on 23 December, multiplied by the queue behind it, turns into waiting time, incidents and reviews. Training that gets cut does not disappear from the system: it reappears as errors at the worst possible moment.

So compression has a limit. What can be moved is when it happens.

 

The framing error: the window does not start on day one

 

This is where most campaign plans assume something the law does not assume: that training has to happen inside the contract.

Look at the volume first. In July 2026, Spain registered 1,551,767 initial contracts, of which 742,910 were production-circumstance contracts, 47.88% of the month's total². That is the modality used to cover peaks. In parallel, somewhat over a million people are registered with Social Security as permanent seasonal workers, the figure designed precisely for seasonal work³.

That second figure changes the calculation, because Spain's Workers' Statute attaches three things to it that almost nobody treats as what they are: instruments for planning training.

You know in January who you will call in November. Article 16.3 requires companies to give worker representatives, "at the start of each calendar year, a calendar of expected annual call-ups"⁴. That calendar exists in your company, it is mandatory, and it usually lives in a labor relations folder. It is also, though nobody calls it that, the list of people you can prepare months in advance.

The law contemplates training them while they are not working. Article 16.8 establishes that permanent seasonal workers "shall be considered a priority group for access to training initiatives within the vocational training system for employment during periods of inactivity"⁴. The inactive period, usually described as dead time between campaigns, is the stretch the rule explicitly flags for training.

The relationship does not start from zero each campaign. The same article recognizes the right to have seniority calculated "taking into account the entire duration of the employment relationship and not the time of services actually rendered"⁴. If the relationship is continuous for seniority purposes, treating a returner as new for training purposes is a management decision, not an obligation.

With those three pieces on the table, the window stops measuring five weeks. Someone returning for their third campaign should not consume ten ramp days: they should consume however many it takes to catch up on what has changed since last December.

 

What can move outside the window and what cannot

 

Not all content allows the same treatment. It helps to separate it by the criterion that matters, which is when it can be delivered without losing validity.

 

 

Row 3 is the one that does not move, and it is the hardest to accept because it is also the most expensive in hours. Rows 1 and 2 are the ones that give the window back: if the compliance block and basic operations land before day one, the ramp left inside the contract is row 3 plus row 4, and that is where the five days from the earlier calculation are recovered.

Row 4 deserves a separate note, because it tends to be forgotten: campaign specifics also affect people who were already there. Every year, new promotions and protocols are rolled out onto a permanent workforce nobody trains, on the assumption that they already know the job. They know last year's job.

This is executable without major changes: a short, modular format, updated piece by piece instead of re-recorded whole from one campaign to the next, is what lets row 2 land before the call-up without producing it again every year. There are training video platforms, Vidext among them, built around that partial-update logic, which is what makes the calendar this article proposes viable.

 

The second campaign is where you win

 

All of the above carries a condition worth stating plainly: it only works if, when the campaign closes, there is a record of what each person did.

If in December nobody notes who completed which module, in which version and with what result, the following November starts from zero again, because there is no way to tell who already knows from who does not. The conversation with management starts over, with the same arguments and the same table.

That record is not an administrative formality. It is what turns one campaign into the foundation of the next, and it pays to build it with the right index from the start: by person and content version, not by course. If your operation also answers to several standards at once, it is worth building it directly as a multi-standard training record, which solves internal traceability and the evidence an inspection asks for during a campaign at the same time.

 

Conclusion: the question is not how much training, it is when

 

Sizing training for a short campaign is not about deciding how many hours fit. It is about doing two calculations almost nobody does: how many days of that contract go into the ramp, and how much of that ramp could have happened before the contract started.

The first calculation takes one sheet of paper. The second depends on whether your company uses what it already has: a call-up calendar that has been mandatory since January, inactive periods the law flags as a priority moment for training, and a record from the previous campaign saying who knows what.

Most organizations complaining that there is no time to train during a campaign are right about the diagnosis and wrong about the window they are looking at.

 

Frequently asked questions

 

What is the Training Payback Window?

It is the difference between the length of the contract and the length of the adaptation ramp: the days in which the person already performs fully and therefore the only stretch in which what you invested in preparing them returns anything. In a five-week contract with a ten-day ramp, the window is fifteen days. In a two-week contract with the same ramp, the window is zero.

 

Can mandatory training be reduced in a short campaign contract?

Not on grounds of duration. Article 19 of Law 31/1995 requires theoretical and practical training that is sufficient, appropriate and role-specific at the time of hiring, without distinguishing between long and short contracts. What can be reorganized is the rest of the content, and when each block is delivered.

 

Can a permanent seasonal worker be trained while not working?

Spain's Workers' Statute contemplates it expressly: article 16.8 considers permanent seasonal workers a priority group for access to vocational training initiatives during periods of inactivity. It is worth checking the sector's collective agreement, which may also regulate sectoral employment pools aimed at continuous training during those periods.

 

How do I know who I will call for the next campaign?

If you work with permanent seasonal contracts, you already know: article 16.3 of the Statute requires giving worker representatives, at the start of each calendar year, a calendar of expected annual call-ups. That document is the basis for planning training months ahead.

 

Do people who worked the previous campaign need training again?

Only on what has changed, provided you can show what they received last time. Without that record there is no way to tell, and the organization ends up retraining everyone from zero out of caution. With it, a returner consumes a fraction of the ramp.

 

Does the permanent workforce need campaign training?

It usually does and almost never gets it. Promotions, new products and returns protocols change every year, and the assumption that long-tenured staff already know them does not hold: they know last year's.

 

Sources

¹ Law 31/1995 on Occupational Risk Prevention, art. 19 - BOE

² Contract statistics, July 2026 - Spanish Public Employment Service (SEPE)

³ Social Security registration figures for permanent seasonal workers in the General Regime as of 30 June 2026, provided by the Spanish government in a parliamentary answer and reported by the economic press in September 2026.

⁴ Royal Legislative Decree 2/2015, Workers' Statute, art. 16 - BOE