--- title: "Conflict Resolution and Merging Rules" slug: "conflict-resolution-and-merging-rules-tg" tags: ["5.4"] updated: 2026-10-28T01:54:43Z published: 2026-10-28T01:54:43Z canonical: "docs.vastdata.com/conflict-resolution-and-merging-rules-tg" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.vastdata.com/llms.txt > Use this file to discover all available pages before exploring further. # Conflict Resolution and Merging Rules - In case of conflict between VAST and non-VAST providers, the VAST provider's attributes override those of the other providers. - In case of conflicting POSIX attributes on external providers, the POSIX primary provider overrules the other external provider. - Users are merged if their *match user* attributes match. The *match user* attribute is configurable in that you can set which attribute on the POSIX primary provider is used to match the users. - All groups found for the user on all providers with distinct group names are treated as distinct groups to which the user belongs. Groups are merged if they match according to a non-configurable group name attribute.