I want to modify input data, but "cannot remove exchanges" message is shown.

Question

Hi. 

I'm a beginner at openLCA.

So there are alot of values to be modified in input data.

I want to erase the incorrect input data, and then I want to enter a new data in input list.

But, when I remove incorrect input data, the following message is shown.

Then do I have to start from the beginning when I modify the input data?

I wonder about it.

Is there anyone who can help me?

Answer 1

This happens if the process is used and connected in a product system. If you delete the product system, or edit it so that the process is not used, or make a copy of the process and edit it then, then you can edit it. When you make a copy, be aware that the previously existing connections are not modified. i.e. you still have the old process connected, and when creating product systems, you need to consider whether you select "prefer default provider" e.g. (because you may have then two processes with the same product). Hth, Andreas

Comments

thank you so much