---
title: "Discussion on \"The Identity Resolution Paradox: Handling Shared Phone Numbers in CRM Architectures\" | Hashnode"
description: "Discussion on \"The Identity Resolution Paradox: Handling Shared Phone Numbers in CRM Architectures\". Merging contacts based on a shared phone number often destroys critical relationship metadata; developers should implement a 'household' or 'entity' abstraction layer instead of destructive deduplication."
url: "https://hashnode.com/posts/the-identity-resolution-paradox-handling-shared-phone-numbers-in-crm-architectures/6aec5bd39c3292e2a5fe82c6"
---

[Feed](https://hashnode.com/feed) /

Discussion

# [The Identity Resolution Paradox: Handling Shared Phone Numbers in CRM Architectures](https://checknumberofficial.hashnode.dev/the-identity-resolution-paradox-handling-shared-phone-numbers-in-crm-architectures?utm_source=hashnode&utm_medium=feed)

Merging contacts based on a shared phone number often destroys critical relationship metadata; developers should implement a 'household' or 'entity' abstraction layer instead of destructive deduplication.

6d ago · 6 min read · checknumberofficial.hashnode.dev  
Read the article

-   [#database](https://hashnode.com/tag/database)
-   [#systemdesign](https://hashnode.com/tag/systemdesign)
-   [#softwareengineering](https://hashnode.com/tag/softwareengineering)

## Written by

[CheckNumber](https://hashnode.com/@checknumber)

@checknumber

  
[View profile](https://hashnode.com/@checknumber)

https://checknumber.ai Bulk phone number & email verification for businesses. Clean your lists, cut bounces, reach real customers.

## Responses

Markdown supported · ⌘↵ to post

No responses yet.