Basically, you will be adding an Action Item, which will have Item Parameters -> Writeback for each field you want to edit + the sys_id.
Once you save the form below:
You will see Item Parameters -> Writeback under Related Links:
Create one for each field you want to edit in the mobile.
I did those by watching the ootb Edit Incident. So, tried to name the fields as the ootb.
Those are simple, only the name and the field type.
Once you're done with that, next step is to Action within the Function. Don't forget to associate this with the one you created in the step above.
Add the conditions (might be different for you, if customized):
Once you save this form, next step is to create the UI parameters and Action parameters mappings.
Below, two examples as a reference:
Sys ID, change the form view to Default, instead of mobile view, so you have more fields in the screen.
Some fields are pre-filled, I just had to fill those underlined in red.
Once you do that for each field you want to edit in the app, is time to add the Action parameters mappings, these are very simple.
You are going to choose the UI parameter you created above and map to the action you did earlier.
When you click the New button (below) you will only three fields, one is already filled, the other two is apple to apple.
Once done, time to map actually create the button in the app. Go back to the application you want to add the Edit button, click the Details tab, then Functions then the + icon. In the popup window, choose a label and select the function you just created.
Hope that helps. 🙂
