I opened a baptism batch. Finished it, but the image shows 1-19 numbers only, while the numbering is 1-30.
The project is preset to 30 entries. You must delete those entries you don't need in order to submit. Click on the Trash Can Icon, click "all blank entries" and Delete. You will then be able to submit the batch.
More on this topic can be found in the Project Instructions General Indexing Guidelines section under Number of Entries Per Image.