Is it possible to upload Autoinvoice FBDI without "Line Transactions Flexfield Context"

Summary:

Content (please ensure you mask any confidential information):

We are currently working on an integration requirement where customer invoices will be imported into Oracle Fusion using the AutoInvoice FBDI process.

In the standard FBDI template there is a field called "Line Transactions Flexfield Context", which is used when there are descriptive flexfields (DFFs) defined at the transaction line level that require a context value.

However, in our use case, we do not have any context-specific DFFs enabled for transaction lines. That means we are not populating any DFF attributes. Would the upload still be successful, or is this field mandatory?