Entering payment but keeping invoice (or deposit) open?

I think I’ve searched for the right stuff, watched the correct videos, etc.

Is there a way to enter a partial payment but also keep the invoice open? It seems like as soon as I enter in a partial payment or deposit, it wants to validate the invoice, and then it seems like I can no longer edit or add more products/services. Is that the only way to do it?

Thanks!

Ηι @justauser
If an invoice exists then it must be validated.
Functionality to enter a pre payment or advance to a third party and then allocate it to an invoice is not implemented.

Sure, the invoice is validated (now). But if I enter a deposit, I can no longer edit the invoice, only go back to enter more payments?

We do a lot of business to business work where the purchase orders are a kind of baseline, with changes possible at a later date. Which would be the proper type to set up where both payments can be made and changes can be made? A proposal?

I believe the issue is related to legal regulations. In a lot contries it is not allowed to change existing invoices after they have been issued.
Today you are issuing an invoice of 1000 for the tax office and afterwards you change it to 2000 for the client. Which would as said illegal in a lot of countries.

there is the option: INVOICE_CAN_BE_EDITED_EVEN_IF_PAYMENT_DONE for the SETUP, OTHER-SETUP.
But check if this is legal in your place.
Regards,
Kim

@Kim_KW1975 In my production 21.0.1 I do not have that variable - and I can change extrafields on paid invoices. (my extrafield is created with “can always be changed”)

the screenshot is of Version 22.0.2. the variable is only there >V22.
Extra fields can always be set to be “always changed”.