Power Automate This Parameter is Read Only

In Power Automate when attempting to update an item I get the following error when the field allows multiple selections:

OpenApiOperationParameterValidationFailed. The ‘inputs.parameters’ of workflow operation ‘Update_item’ of type ‘OpenApiConnection’ is not valid. Error details: The API operation does not allow writing a value for parameter ‘item/itemName[0]/Id’. This parameter is read only.

Here are the steps to avoid this issue:

Near the top of your flow add a new step called Initialize Variable

type the name of what you want to variable to be called and select Array as the type. Leave Value blank

Next add a step called Append to array variable

For name enter the variable you used from above (e.g. RampstoInsert)

for value put in this code:

{
“Value”:
}

After the : insert the dynamic content of the multi value you are wanting. When you do that it will probably create an apply to each object which is normal