Save/modify custom client field on invoice page

Support
1

Hello there!

It is a bit tricky ; but I need each time an invoice is saved, my custom field " client_custom_ultima_lectura_cliente " was modified /saved.

I show in an input on view page , but not how modify the controller to save the value on BD.

Thanks in advance.

Regards!

2

Could you please specify what you want to achieve? It’s not clear what you want to do with your custom field?

3

Sorry for my poor English.

I need to save a custom field value from the clients table through invoice view.

Do you understand better now?

Thanks in advance.