# Add a phase to a material

**URL:** <https://community.realtimelca.com/t/add-a-phase-to-a-material/158>\
**Category:** Help\
**Tags:** epd\
**Created:** [October 7, 2024, 11:19am UTC](https://community.realtimelca.com/t/add-a-phase-to-a-material/158 "2024-10-07T11:19:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Shansetha](https://avatars.discourse-cdn.com/v4/letter/s/eb8c5e/32.png) [@Shansetha](https://community.realtimelca.com/u/Shansetha)\
**Post date:** [October 7, 2024, 11:19am UTC](https://community.realtimelca.com/t/add-a-phase-to-a-material/158/1 "2024-10-07T11:19:57Z")

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Hello,  
I would like to insert an EPD for “Troldtekt grå Natur - 25 mm umalet”. Is it not possible to insert it even though I haven’t included phase C3?

When I try to put it in, it says: "The material you are trying to map does not include the necessary phases set as Calculation Premequisites in the Project Settings. Please use a different material or add these phases to the material: C3.  
How do I add a phase to a material? 🙂

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**Author:** ![Mads\_Ditlevsen](https://dub1.discourse-cdn.com/flex005/user_avatar/community.realtimelca.com/mads_ditlevsen/32/129_2.png) [@Mads\_Ditlevsen](https://community.realtimelca.com/u/Mads_Ditlevsen)\
**Post date:** [October 8, 2024, 6:59pm UTC](https://community.realtimelca.com/t/add-a-phase-to-a-material/158/2 "2024-10-08T18:59:31Z")

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Hi Shansetha  
Thank you for your question.

There are some products in the library where the C3 or C4 stages is not delclared. These ones will automatically give you a warning.  
We’re working on an option where the building LCA can be enriched with generic data if the stages are not present in the EPD.

Best regards  
Mads