API exception message when updating customer shipping branch

Hello.

I’m trying to update a Customer through a PUT request to the REST API, using v2022 R2. At some point of my body request I have the following code to update the ShippingBranch:

{
  ...

  "RestrictVisibilityTo": {
    "value": "GROUPE"
  },
  "ShippingBranch": {
    "value": "OUTREMER"
  },

 ...
}

This request is returning the exception

	"innerException": {
		"message": "An error has occurred.",
		"exceptionMessage": "Do you want to keep the value in the Shipping Branch box?",
		"exceptionType": "PX.Data.PXException",
		"stackTrace": null
	}

Am I missing any property in my request to confirm that I really want to update or override the Shipping Branch?

What am I doing wrong?

Thanks.