Custom Fields vs Tags: Store Data You Can Actually Report On Later

A custom field

A custom field is a defined attribute with a name, a data type and one value per record. Property type, budget band, expected delivery date, licence number. It has structure, so the system can validate it, require it, filter on it, group a report by it and use it as a condition in automation.

A tag

A tag is a free-form label. A record can carry many, they have no type, and anyone can create one. Tags are fast, informal and excellent for temporary or overlapping groupings that do not deserve a permanent place in your data model.

Tags are frictionless, which is exactly the problem. Adding a tag takes a second and adding a field takes a conversation, so teams tag everything and find months later that they cannot report on any of it. Hot-lead, hot lead and HotLead mean one thing to a human and three to a database.

The opposite error is rarer and quieter. Every possible attribute becomes a field, the record grows to sixty inputs, most stay empty, and reps stop filling in the ones that matter because the form has become a wall.

Will you group a report by it?

If you want a chart broken down by this attribute, it is a field. Reporting on free text is guesswork, and the answer will be wrong in a way that is hard to detect.

Does it have a fixed set of valid values?

Budget bands, property types, industries and lead sources have a finite list. A dropdown field enforces it. A tag invites four spellings of the same idea by the end of the quarter.

Can a record have several at once?

A deal has one value and one close date, so those are fields. A contact can simultaneously be a webinar attendee, a referral source and a former customer, and multiple overlapping labels is precisely what tags are for.

Is it permanent or temporary?

Tags suit this-quarter groupings: a campaign list, an event, a pilot. Fields are for attributes that will still matter in two years.

Use fields for the handful of attributes that drive decisions, reports and automation, and keep the list short enough that reps actually complete it. Use tags for everything situational, overlapping or temporary. Almost every healthy CRM uses both, and the maintenance habit that keeps it healthy is a quarterly review: any tag that has become a permanent, mutually exclusive category should be promoted to a field, and any tag used twice last year should be deleted.

Custom fields are created per record type with a chosen data type, including dropdown lists that constrain the valid values, and can be made mandatory at a particular pipeline stage rather than at creation, which keeps the first capture screen fast. Fields are available as filters, as report groupings and as conditions in routing rules and automations.

Tags are unrestricted and multi-valued, usable in filters and segment building for campaigns. Bulk actions let you convert a tag into a field value across many records once a label has proved it deserves promotion, so the informal layer feeds the structured one instead of competing with it. Custom fields, automation conditions and bulk actions are available on paid plans.

Related: features, sales automation, lead management software, CRM vs Excel, what a CRM is, and CRM for small business.