Yes, there are limits to the total number of lists and cards on a board (along with other things such as number of members, checklists, labels). These limits may vary depending on your type of account and other factors that are at Trello's discretion. Typical values are: * Open cards: 4,750 * Total cards (including archived): 1,900,000 * Open lists: 475 * Total lists: 2,850 * Labels: 950 * Checklists (including on archived cards): 1,900,000 * Custom fields: 48 * Attachments: 34,200 * Members: 1,520 (Note I'm not an employee of Trello, and thus this is not official information. These limits are subject to change. Trello does warn when a board is about to reach some limits.)

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I am a trello user, If there is any limits on list or cards?

Leo Lam_covib7

Any limits

Accepted answers

Oscar Triscon

Yes, there are limits to the total number of lists and cards on a board (along with other things such as number of members, checklists, labels). These limits may vary depending on your type of account and other factors that are at Trello's discretion. Typical values are:

Open cards: 4,750
Total cards (including archived): 1,900,000
Open lists: 475
Total lists: 2,850
Labels: 950
Checklists (including on archived cards): 1,900,000
Custom fields: 48
Attachments: 34,200
Members: 1,520

(Note I'm not an employee of Trello, and thus this is not official information. These limits are subject to change. Trello does warn when a board is about to reach some limits.)

Petter Gonçalves

Hello Everyone,

We now have an official Atlassian page that describes the limits for Trello objects:

Trello Limits

According to that page, the following limits are applied:

Board-level Limits:

Total members: 1520
Open cards: 5000
Total cards (including archived): 2.000.000
Open lists: 475
Total lists: 2.850
Labels: 950
Checklists: 15200

Card-level Limits:

Attachments: 950
Checklists: 475
Stickers: 67

Webhooks and Limits:

In addition to limiting the number of different types of objects that can exist on a board or card, we disallow creating new webhooks on objects that have exceeded their limits.

Attempting to create a webhook on an object that has exceeded its limits will result in the following error message: HTTP/1.1 500 Model exceeds limits. Webhooks that exist on models that have a limit status of maxExceeded will be deleted.

Regards,
Petter Gonçalves - Atlassian Support

All comments

Oscar Triscon

Open cards: 4,750
Total cards (including archived): 1,900,000
Open lists: 475
Total lists: 2,850
Labels: 950
Checklists (including on archived cards): 1,900,000
Custom fields: 48
Attachments: 34,200
Members: 1,520

(Note I'm not an employee of Trello, and thus this is not official information. These limits are subject to change. Trello does warn when a board is about to reach some limits.)

Leo Lam_covib7

Thank you Oscar! The answer is good enough

Keruchan

Does the list limit only for open list? Not including archive?

Also attachment is that limit 34,000 per card?

milynnus

@Oscar Triscon

Do you know the limits on checklist items per checklist?

Also using the cascade for each card from item...how many iterations it will perform at any one time.

Thanks

Petter Gonçalves

Hello Everyone,

We now have an official Atlassian page that describes the limits for Trello objects:

Trello Limits

According to that page, the following limits are applied:

Board-level Limits:

Total members: 1520
Open cards: 5000
Total cards (including archived): 2.000.000
Open lists: 475
Total lists: 2.850
Labels: 950
Checklists: 15200

Card-level Limits:

Attachments: 950
Checklists: 475
Stickers: 67

Webhooks and Limits:

In addition to limiting the number of different types of objects that can exist on a board or card, we disallow creating new webhooks on objects that have exceeded their limits.

Regards,
Petter Gonçalves - Atlassian Support

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