We have custom events/API calls running in the background I think that's causing this but struggling to find the cause.
I am going from the business opportunity, creating a quote but delivery is greyed out. I then try to modify and see the following error:
![](https://uploads-eu-west-1.insided.com/ifs-en/attachment/51384116-f114-4bb5-bfbb-c4453b41393d.png)
Any ideas how I can trace back the problem?