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Worried about a mistake at work

67 replies

Tillow4ever · 26/04/2026 19:03

I discovered on Friday that I hade a mistake on a form at work that I completed a few months ago. I was trying to work out why one of our customer invoices for a promotion they ran for us was so much higher than the pot of money we had accrued to cover this (basically, for every unit of our product they sold at the promotional price, we agreed to pay them a certain amount of money - we forecast how many units we expected them to sell, multiplied it by the agreed amount, and accrued that money to pay the invoices against). When I did some digging, I realised that I had put the wrong pence per unit amount on the form - I had taken the amount in the wrong column on a spreadsheet because I forgot that, unlike our other promotions, this one has a permanent off invoice discount as well as the promotion funding - I put the off invoice discount in the box.

This has resulted in just under £130,000 more being invoiced than would have been if I had put the correct trigger on the form. The moment I realised what had happened, I reported it to the account manager, apologised profusely and explained what had happened, then offered to contact the customer and pretty much beg them to honour the usual trigger as it was clearly a mistake. The account manager has said to hold off til Monday, he is going to speak to the buyer as our relationship is good with the customer at the minute. I asked if I should let my line manager know, but he told me to wait until Monday and see what the customer says first. I pulled all of the sakes and invoice data on Friday so we could calculate the amount exactly, and I’ve sent this plus copy invoices etc to the account manager.

I have spent the whole weekend thinking about this, feeling sick and terrified I’m going to lose my job, I have worked here for 22 years, I’ve been in my current role for 13 years and am seen as an expert in what I do - but ultimately I’m very low in the business and easily replaceable.

The business is a multi billion pound, global business. So whilst it’s a massive, massive sum of money, it’s practically chump change to them. I’ve saved the business more than this over the years through my record keeping as I’m able to challenge audit claims and prove we don’t owe money that otherwise would be difficult to prove and we’d have had to pay them. But memories are short, and what I saved them elsewhere isn’t going to help me here.

Does anyone know if they can sack me for this? It was a genuine mistake. I’ve owned up the moment I realised what happened (and I am fairly certain if I’d kept quiet no-one would have realised, but I couldn’t do that, I’m not a person who would hide the truth to save their own skin). I am hopeful we can get the customer to repay it. But I’m wondering if this is the sort of thing someone can be sacked for regardless of whether or not it is recovered? I’m spiralling.

Please be kind. This isn’t AIBU - I know I’ve fucked up. I don’t think anyone can be harsher on me than I already am. I’m posting for some empathy and a genuine view on whether people think it is a sackable offence or not. Thank you.

OP posts:
Oddlyfull · 26/04/2026 19:05

The error happened months ago

so have they already overpaid by £130k?

busyd4y · 26/04/2026 19:10

Is the customer equally large, would it also be small potatoes to them?

Whether its a sackable situation I assume depends on your employer, I don't think anyone will be able to tell you that accurately

It's an awful feeling when you know you've made a mistake but you've done the hardest bit in telling someone, hopefully you will get it sorted one way or another without it dragging on

Blossoms217 · 26/04/2026 19:15

I know someone who did this and they didn't lose their job

Tillow4ever · 26/04/2026 19:19

Oddlyfull · 26/04/2026 19:05

The error happened months ago

so have they already overpaid by £130k?

We nominate the promotion several months ahead of when it is due to run. The promotion has just finished running, so the invoices have only just come in.

they’ve charged us roughly £530k for the promotion whereas if I had put the right trigger on the form (roughly 10 pence per unit sold lower than what I put) it would have been around £400k (approx numbers, I don’t have the details in front of me).

OP posts:
Oddlyfull · 26/04/2026 19:20

Tillow4ever · 26/04/2026 19:19

We nominate the promotion several months ahead of when it is due to run. The promotion has just finished running, so the invoices have only just come in.

they’ve charged us roughly £530k for the promotion whereas if I had put the right trigger on the form (roughly 10 pence per unit sold lower than what I put) it would have been around £400k (approx numbers, I don’t have the details in front of me).

So it’s your company that has overpaid by £130k?

Tillow4ever · 26/04/2026 19:20

busyd4y · 26/04/2026 19:10

Is the customer equally large, would it also be small potatoes to them?

Whether its a sackable situation I assume depends on your employer, I don't think anyone will be able to tell you that accurately

It's an awful feeling when you know you've made a mistake but you've done the hardest bit in telling someone, hopefully you will get it sorted one way or another without it dragging on

we are small fry compared to our customer. They’re something like 42% of our business, we are 5% of theirs.

I am really hoping they agree to repay it.

OP posts:
Oddlyfull · 26/04/2026 19:21

Tillow4ever · 26/04/2026 19:20

we are small fry compared to our customer. They’re something like 42% of our business, we are 5% of theirs.

I am really hoping they agree to repay it.

How long have you been there? Completely unblemished record?

Tillow4ever · 26/04/2026 19:23

Blossoms217 · 26/04/2026 19:15

I know someone who did this and they didn't lose their job

Thank you. I know that no-one here can say for certain - it makes me feel better to know someone else wasn’t sacked for something similar. I am the admin support for the 5 biggest customers in our business, they all have slightly different ways of giving them promo discounts - so the amount when typing it in didn’t feel wrong as it’s similar to something elsewhere. I think I know when I was going the form and I was given a single afternoon to get dozens of forms done for the one customer - I’m supposed to have a weeks notice. I had a lot to do for other customers too. I know these are excuses, but there was just too much work for one person.

OP posts:
BountifulPantry · 26/04/2026 19:24

They will need to repay it.

Their contract would stipulate the payment terms. So it’s not a question of they won’t want to pay it back- they have to.

Seriously OP, go to your boss first thing tomorrow and tell them what’s happened. Offer to fix it and say it was a genuine human error.

No one has died. It’s just money. It’s a fixable issue. Take a breath- will be fine.

Tillow4ever · 26/04/2026 19:25

Oddlyfull · 26/04/2026 19:21

How long have you been there? Completely unblemished record?

22 years, 23 including my contract year. Unblemished record. A “high” meets expectations every year, and an exceeds expectations 3 years ago.

OP posts:
Oddlyfull · 26/04/2026 19:26

Tillow4ever · 26/04/2026 19:25

22 years, 23 including my contract year. Unblemished record. A “high” meets expectations every year, and an exceeds expectations 3 years ago.

Goodness - then don’t worry

Tillow4ever · 26/04/2026 19:27

BountifulPantry · 26/04/2026 19:24

They will need to repay it.

Their contract would stipulate the payment terms. So it’s not a question of they won’t want to pay it back- they have to.

Seriously OP, go to your boss first thing tomorrow and tell them what’s happened. Offer to fix it and say it was a genuine human error.

No one has died. It’s just money. It’s a fixable issue. Take a breath- will be fine.

The problem is the promo form I complete is technically us agreeing to give them that funding. They’d have known it should be less.

I was going to tell my boss on Friday but the account manager didn’t want that, he wants to speak to the customer first. As it’s his account, I didn’t want to go around him and tell in case it got him in trouble somehow.

OP posts:
Tillow4ever · 26/04/2026 19:27

Oddlyfull · 26/04/2026 19:26

Goodness - then don’t worry

Thank you.

OP posts:
sodoffbeforemycupofcoff · 26/04/2026 19:27

You are not a robot. You actions show you’re sincerely sorry and personally I would look at your great record and let this one slide! If it is an invoice have you actually cost the company any money?

TappyGilmore · 26/04/2026 19:29

Long-serving employee with unblemished record. As long as you own up to the mistake, acknowledge that it is a big deal, are apologetic, and can clearly articulate how it happened and what you would do next time to make sure it doesn’t happen again … I think your chances of getting sacked are slim. Possibly a warning though.

KilkennyCats · 26/04/2026 19:32

I don’t think you need worry about being sacked, op Flowers
I’ve seen far bigger balls ups with no repercussions.

loverrrr · 26/04/2026 19:33

Im the buyer in the situation OP & let me assure you this situation happens all the time! I have dealt with around £2m of invoice queries based on this situation this year already. I cant speak for your business specifically but Im certain you wont have been the first person there to make a mistake like this!

loverrrr · 26/04/2026 19:36

Tillow4ever · 26/04/2026 19:27

The problem is the promo form I complete is technically us agreeing to give them that funding. They’d have known it should be less.

I was going to tell my boss on Friday but the account manager didn’t want that, he wants to speak to the customer first. As it’s his account, I didn’t want to go around him and tell in case it got him in trouble somehow.

The buyer could hold your company to paying the additional £130k but if there is a good relationship then they wont- there will be errors both ways throughout the year.

SuperSugarHigh · 26/04/2026 19:38

No one has died - that is always my measure at work. It’s just money, it’s a simple mistake and you raised it as soon as you spotted it. I work in an industry where a mistake can also cost £££ - we have insurance to cover it, and your work may be the same. Either way, businesses anticipate these types of things.

Im surprised there isn’t a better way of processing whatever form you had to complete - at least a second pair of eyes or similar. It may end up being a trigger to improve processes.

It won’t feel great right now - I’ve lost track of the number of weekends I’ve spent spiralling about stuff I’ve either done wrong or might have done wrong - but you’ll be fine. I’d be astonished if you lost your job over this; I’d actually be surprised if you were even disciplined in any way.

k1233 · 26/04/2026 19:38

Tillow4ever · 26/04/2026 19:27

The problem is the promo form I complete is technically us agreeing to give them that funding. They’d have known it should be less.

I was going to tell my boss on Friday but the account manager didn’t want that, he wants to speak to the customer first. As it’s his account, I didn’t want to go around him and tell in case it got him in trouble somehow.

I would give your manager a heads up. There's nothing worse than hearing about things like this after the fact. Let them know you have alerted the account manager and they are currently speaking with the client, so no action is needed yet. In these situations, for me, it's not about blame. The situation has happened and you can't go back in time. In most cases the person who has made the mistake is harder on themselves than I would ever be. What I want to know is the mistake happened because of XYZ and going forward ABC will be done so it isn't repeated.

Tillow4ever · 26/04/2026 19:45

sodoffbeforemycupofcoff · 26/04/2026 19:27

You are not a robot. You actions show you’re sincerely sorry and personally I would look at your great record and let this one slide! If it is an invoice have you actually cost the company any money?

Sadly yes because they deduct the invoices from our invoices to them, so it’s not a request for payment.

I am hoping my transparency will help.

OP posts:
Choconuts · 26/04/2026 19:45

Pretty sure the other company will just reject the payment on Monday. Their own accounts/auditors wouldn’t look kindly to their accounts suddenly being up by an unexplained £130k.

Tillow4ever · 26/04/2026 19:45

TappyGilmore · 26/04/2026 19:29

Long-serving employee with unblemished record. As long as you own up to the mistake, acknowledge that it is a big deal, are apologetic, and can clearly articulate how it happened and what you would do next time to make sure it doesn’t happen again … I think your chances of getting sacked are slim. Possibly a warning though.

Thank you.

OP posts:
Tillow4ever · 26/04/2026 19:46

loverrrr · 26/04/2026 19:33

Im the buyer in the situation OP & let me assure you this situation happens all the time! I have dealt with around £2m of invoice queries based on this situation this year already. I cant speak for your business specifically but Im certain you wont have been the first person there to make a mistake like this!

Thank you! Do you usually repay in these circumstances (the promotions run frequently so it will ge clear what the “usual” trigger payment is)? This definitely makes me feel better!

OP posts:
Choconuts · 26/04/2026 19:47

Tillow4ever · 26/04/2026 19:45

Sadly yes because they deduct the invoices from our invoices to them, so it’s not a request for payment.

I am hoping my transparency will help.

My above still applies they would still have to show the paper trail which will highlight the error. Big companies are not normally in the practice of stealing especially from regular clients/customers.

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