Batch Create-Sale Invoice Customer field missing

I believe the field labels Manager accepts is greater than the field labels shown by default on batch create.

All batch update labels are accepted.

This is a bug introduced recently
For example, here is the Batch Create template from version 22.1.6

Yes it should be listed in batch create.
But if you use any of the headings from batch update (other than “key”), do they work in batch create?

Yes, try it in a test business.