# \[Question\] Weaviate Auto Schema: Why Are Properties Shared Across Collections?

**URL:** <https://forum.weaviate.io/t/question-weaviate-auto-schema-why-are-properties-shared-across-collections/19930>\
**Category:** Support\
**Tags:** technical\
**Created:** [March 17, 2025, 2:31pm UTC](https://forum.weaviate.io/t/question-weaviate-auto-schema-why-are-properties-shared-across-collections/19930 "2025-03-17T14:31:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mestanam](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.weaviate.io/mestanam/32/6900_2.png) [@mestanam](https://forum.weaviate.io/u/mestanam)\
**Post date:** [March 17, 2025, 2:31pm UTC](https://forum.weaviate.io/t/question-weaviate-auto-schema-why-are-properties-shared-across-collections/19930/1 "2025-03-17T14:31:22Z")

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Question:

I have a question regarding Auto Schema in Weaviate.

Scenario:

• Auto Schema is enabled

1. Create Collection A

2. Add the following object:

{

“text”: “test”,

“files”: [

{

“path”: “path”,

“name”: “name”

}

]

}

1. Create Collection B

2. Add the following object:

{

“name”: “name”

}

1. Create Collection C

2. Try to add the following object, but an error occurs:

{

“files”: [“file”]

}

Observation:

Upon checking the schema, I noticed that properties were not created separately for each collection. Instead, the properties were generated based on the property types from Collection A and Collection B.

Question:

Why is this happening? How does Weaviate handle schema generation across multiple collections when Auto Schema is enabled?

Weaviate version : 1.26.1

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<div class="post-metadata">

**Author:** ![Shahin](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.weaviate.io/shahin/32/7944_2.png) [@Shahin](https://forum.weaviate.io/u/Shahin)\
**Post date:** [March 18, 2025, 12:29pm UTC](https://forum.weaviate.io/t/question-weaviate-auto-schema-why-are-properties-shared-across-collections/19930/2 "2025-03-18T12:29:00Z")

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Hey @mestanam,

Welcome to our community! Great to have you here.

I haven’t come across any issues with Auto Schema across multiple collections before when I tested 🤔

Would you be able to share a small script or notebook that you tested locally? I can try reproducing it on my end with it and see what’s happening.