# B2B marketing database: CRM, warehouse, or vendor file
> A B2B marketing database is the living system of accounts and people you operate from. That should be a CRM, sometimes backed by a warehouse. A CSV from a lead vendor is a file. It is not a database until someone owns duplicates, consent, and write rules.
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## The CRM is the system of record for work

Sales and marketing need one place where an account, its people, and its stages live. [Salesforce](https://www.salesforce.com) and [HubSpot](https://www.hubspot.com) are the common commercial answers. Either can be a real database if you define objects, required fields, and who may create a contact. Either can be a junk drawer if everyone imports CSVs at 6 p.m. on Friday.

*A database you operate is not a credit pack you refresh.*

## A warehouse holds history. It does not run the day.

Warehouses (BigQuery, Snowflake, Redshift, and the rest) are good for joining product events, billing, and CRM extracts without slowing the CRM. They are a poor place to assign an owner or log a call. If your "marketing database" only exists in SQL, operators will keep shadow spreadsheets. Use the warehouse to analyze. Use the CRM to act.

## A vendor file is not your database

Lead vendors sell coverage. You still have to match those rows to accounts, drop people you may not contact, and decide the surviving record when two emails point at one human. Importing 40,000 rows into a new object called "leads" without deduping against customers is how you spam your own users. Stage vendor data in a holding object or a sheet with an owner, then promote records that pass rules.

## Write access and duplicates

Name the fields marketing may edit and the fields only sales or ops may edit. Turn on duplicate rules for email and domain. If two tools both "own" the person record, you will spend the year reconciling. The database is a political document as much as a technical one: it records who is allowed to be right.

## Related

- [B2B content marketing: thought leadership versus product pages](https://omentir.com/b2b-content-marketing.md)
- [B2B brand marketing is category work, not a campaign flight](https://omentir.com/b2b-brand-marketing.md)
- [B2B healthcare marketing: compliance, long cycles, and who you can email](https://omentir.com/b2b-healthcare-marketing.md)

## Common questions

**Do I need a CDP as well?**

Not at the start. A CDP helps when many systems must share a profile and you have the people to run it. Most B2B teams under 20 marketers get further by making HubSpot or Salesforce trustworthy, then adding a warehouse.

**Should product-led companies skip the CRM?**

No. Product data can create the account. Someone still has to own expansion, billing contacts, and the moment a self-serve user becomes a sales motion. That someone needs a CRM record, not only an app user id.

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