What Are Association Limits?
Association limits let you control how many records can be linked together between objects. These rules ensure data remains organized, prevent over-association, and are now visually enforced in the UI.
Note: To enable this feature, go to Settings > Labs > Association Limits Handling, and toggle it on.
Please note that Custom Objects are only visible on the 497 plan.
What Are Association Limits?
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Avoids over-linking between records.
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Helps keep data structures clean.
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Reduces user confusion when the limits are reached with clear UI feedback.
Supported Relationship Types
For multi-label associations:
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One-to-One (1:1)
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One-to-N (where N ≤ 1000)
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One-to-Many
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Many-to-Many
For single-label contact-to-contact associations:
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One-to-One (1:1)
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Many-to-Many
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Custom N-to-N
Note: Limits are enforced per label and reflected in the user interface.
How to Set Up Association Limits
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Go to your sub-account, Navigate to Settings > Objects
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Select any Custom Object or Contacts
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Go to the Associations tab, Click Create Association or edit an existing one
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Choose either a single label or a pair of labels.
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Under Configure Relationship, select the type (e.g. 1:1, 1:N) and define limits if applicable
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Use the Preview section to confirm constraints before saving.
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The configured associations are also shown in the associations tab.
Example: Real Estate Management
A real estate agency wants to ensure that each Agent manages no more than 50 Properties:
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Create a one-to-N relationship from Agent to Property
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Set the limit as N = 50
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When an agent hits this cap, users will see a UI warning and can no longer assign more properties, ensuring balanced workloads.
Association Limits:
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If you try to associate beyond the allowed count, an error message will be shown instantly, this helps in clear and efficient management of the data-structures