# Possibility to define product consumption within an operation/step of a Routing

**URL:** https://discuss.tryton.org/t/possibility-to-define-product-consumption-within-an-operation-step-of-a-routing/734
**Category:** User
**Created:** [September 15, 2018, 6:46pm UTC](https://discuss.tryton.org/t/possibility-to-define-product-consumption-within-an-operation-step-of-a-routing/734 "2018-09-15T18:46:43Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![koushik704](https://discuss-cdn.tryton.org/letter_avatar_proxy/v4/letter/k/f9ae1b/32.png) [@koushik704](https://discuss.tryton.org/u/koushik704)
#### Post date: [September 15, 2018, 6:46pm UTC](https://discuss.tryton.org/t/possibility-to-define-product-consumption-within-an-operation-step-of-a-routing/734/1 "2018-09-15T18:46:43Z")

</div>

Hi,

I was checking the production routing module in Tryton 4.8. It seems quite straight-forward to me as it is allowing me to allocate a routing to multiple BOMs or a BOM to multiple routings. It looks like many-to-many relationships. But I didn’t find the possibility to define which materials will be consumed at which operation/step of routing. Moreover it is also possible to allocate a BOM where the materials are not related to an operation. I think the following features are missing?

1. It should not allow me to allocate a BOM which is not having any connection with a step of a routing.
2. It should allow me to define which input products of the BOM will be consumed at which step/operation of a routing.

What do you say?

Kind regards  
Koushik

---

<div class="post-metadata">

### Author: ![ced](https://discuss-cdn.tryton.org/user_avatar/discuss.tryton.org/ced/32/1237_2.png) [@ced](https://discuss.tryton.org/u/ced)
#### Post date: [September 16, 2018, 7:19am UTC](https://discuss.tryton.org/t/possibility-to-define-product-consumption-within-an-operation-step-of-a-routing/734/2 "2018-09-16T07:19:57Z")

</div>

> [@koushik704](#):
>
> It should not allow me to allocate a BOM which is not having any connection with a step of a routing.

We want to be able to use production without routing.

> [@koushik704](#):
>
> It should allow me to define which input products of the BOM will be consumed at which step/operation of a routing.

The problem is that routing can be linked to different BoMs and they may not require the same materials.