How to write into document

Hello Docuware community,

I need your help.

What I need to do is the following :

Users will enter data in some fields on a web form (example field A and field B), and then another field is calculated C=A+B and displayed on the document stored in the cabinet.

What I have done so far: 

- I've created a web form with a merge form on Excel with the field A, B and C
- I've created a workflow that calculate the field C and put it on the index data (in the field C)

The calculation is done correctly but I don't know how to write the field C back on the document.
I've thought about using autoindex but I don't know how to implement it to fit the need.
Does anyone have an idea?

Thanks in advance.
Regards

Hello,

I'm back to post the solution I've found, may be it can help someone else.

In the workflow trigger, I've checked the option "If the document was created from a merge form only", and I gave my merge form name.
That was what I missed to use the filling areas.

Regards,
jalila