# Assign Parameter to Material Parameter in Family

**URL:** <https://forum.dynamobim.com/t/assign-parameter-to-material-parameter-in-family/52364>\
**Category:** Developers\
**Created:** [June 29, 2020, 5:30am UTC](https://forum.dynamobim.com/t/assign-parameter-to-material-parameter-in-family/52364 "2020-06-29T05:30:03Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![laurin.ernstMA6Q3](https://avatars.discourse-cdn.com/v4/letter/l/ecccb3/32.png) [@laurin.ernstMA6Q3](https://forum.dynamobim.com/u/laurin.ernstMA6Q3)\
**Post date:** [June 29, 2020, 5:30am UTC](https://forum.dynamobim.com/t/assign-parameter-to-material-parameter-in-family/52364/1 "2020-06-29T05:30:03Z")

</div>

Hello everyone,

i want to assign an instance parameter to the material parameter of a family - so that i have access to the material in Revit.  
You see the usual workflow in this video:

How do i even access the material? Do i access the material of the family correctly?

 ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/7/f/7f8c3c6cc85679a6a60e4e02f48518247e155f43.png)  
Since the material is None, i get the yellow error message

Then also: when i get the material how can i change it or how can i set an instance parameter for it?

---

<div class="post-metadata">

**Author:** ![laurin.ernstMA6Q3](https://avatars.discourse-cdn.com/v4/letter/l/ecccb3/32.png) [@laurin.ernstMA6Q3](https://forum.dynamobim.com/u/laurin.ernstMA6Q3)\
**Post date:** [June 29, 2020, 5:30am UTC](https://forum.dynamobim.com/t/assign-parameter-to-material-parameter-in-family/52364/2 "2020-06-29T05:30:27Z")

</div>

Video is here: [https://uibkacat-my.sharepoint.com/:f:/g/personal/laurin\_ernst\_student\_uibk\_ac\_at/EjymxniFoVpChkctL0R3QvQBxOSCi8GBFgnvS4LlCQ54ig?e=05dL9t](https://uibkacat-my.sharepoint.com/:f:/g/personal/laurin_ernst_student_uibk_ac_at/EjymxniFoVpChkctL0R3QvQBxOSCi8GBFgnvS4LlCQ54ig?e=05dL9t)

---

<div class="post-metadata">

**Author:** ![laurin.ernstMA6Q3](https://avatars.discourse-cdn.com/v4/letter/l/ecccb3/32.png) [@laurin.ernstMA6Q3](https://forum.dynamobim.com/u/laurin.ernstMA6Q3)\
**Post date:** [June 29, 2020, 5:58am UTC](https://forum.dynamobim.com/t/assign-parameter-to-material-parameter-in-family/52364/3 "2020-06-29T05:58:55Z")

</div>

Or is there any nodes/ packages that can do that?