We strongly recommend creating Articles in InDesign using MadeToTag Task 2. 

Articles in InDesign define the structural order of elements that go into the tag tree. When there are no articles created explicitely, InDesign will "guess" the order.

Additionally, the way some optimizing functionality in MadeToTag works (e.g. Optimizing anchored frames, create MathML annotations), we do actually need a predefined order.

The warning message is displayed on export if no article assignment was made in your InDesign document or in the book documents.

We recommend that you structure the content into articles according to the natural reading flow in the document. This will ensure that the defined logical reading order is transferred to the PDF tag tree. Screen readers can read the PDF document aloud based on the linear tag structure in the tag tree.

If the article assignment is missing in your InDesign document, MadeToTag can still export it. However, the following major problems may occur:

• The user-generated and logical reading order is replaced by an InDesign-generated reading order. All text and image frames are only placed in a linear reading order depending on their position in the layout. This order is mostly illogical and does not match the natural reading flow.
• The essential MadeToTag features "Optimize anchored frames" and "Create MathML annotations" cannot be processed because MadeToTag cannot create the shadow articles required for post-processing.
• When your InDesign document contains only empty articles, meaning articles without assigned content, it can even lead to an export failure.

To prevent such problems, we recommend that you always structure the content of the document in articles. The article assignment can be revised at any time and remains saved in the InDesign document. The articles have no impact over the layout.

Please also refer to our further information on "Structure content in articles".